Subaru Gearboxes – All you need to knowReplacement Subaru Gearbox ChoicesIn today’s automotive gearbox industry there are many terms used to describe repair techniques and consumers are sometimes unsure about exactly what they are getting. Terms like “repaired”, “overhauled” or “reconditioned” or “remanufactured” can be misleading because they mean different things in different workshops and there is no governing body to set and maintain standards. Sometimes this means consumers are worse off than before, because they might have purchased something that either exceeded their needs, or failed to meet them. Consumers have differing needs, in terms of application and budget. They might need a repair for an older car that won’t exceed the value of the car, or they may want a high quality replacement gearbox for a late model vehicle that will give long life and high reliability. Show
Gearbox choices can be confusing. With the many different models Subaru have produced over the years, and the slightly different configurations for specific world regions, there are many things to consider when sourcing a replacement gearbox. It’s not uncommon for consumers to be supplied with an incompatible unit. After making sure that you have identified the right replacement box, there is the question of just how far you want to take the repairs, choices ranging from one or two replacement parts, to a fully remanufactured assembly. At All Drive Subaroo we have worked over many years to design clearly defined levels of gearbox repair or replacement for differing purposes and budgets. Our different gearbox builds cater for all consumers, from those who need to keep an older car going inexpensively, to motorsport enthusiasts who need a gearbox strong enough to withstand high stresses while delivering high reliability. You can choose from the budget rebuilt 5-speed assembled with selected used and new parts, to a fully re-manufactured gearbox as good, or better than the OEM original. We also offer different levels of motorsport gearboxes. Different types and build levels Subaru turbo 5 speed manual gearbox – push and pull typeProblems, solutions and a cautionThe story of the push or pull type clutch gearboxes begins in 1991 and is still being written, with some models still running the 5-speed manual gearbox. The earlier turbo four-bolt pull-type clutch models (series 1, 91-98) had many problems. While these gearboxes worked well, with a positive, quick action and were enjoyable to operate, the power generated by the turbo engines, especially when driven by younger more enthusiastic drivers, was often too much for 2nd and 3rd gears and there were frequent failures. In 99 Subaru moved to an 8-bolt gearbox, (series 2, 99-01) which was better shifting, and incorporated several other improvements. There were however still some problems with 2nd and 3rd gear breakages. This led to widespread customer dissatisfaction, which prompted Subaru to redesign the 8-bolt gearbox with a larger and more robust gear set. There are many small variations in the pull-type gearbox from 1991-2005 that prevent fitting boxes between models. In ‘06- Subaru made a major change with the introduction of the push-type clutch gearbox and some changes in gearbox internal configuration that resulted in smoother shifts and enhanced all-round operability. The gearbox was finally all it should have been from the start in terms of useability and durability. However, the push-type clutch, with its extended thrust snout, brought with it new and different problems. Turbo 5-speed gearboxes begin with the range: TY752, TY754, TY755, TY757 and TY758. Subsequent numbers identify which specific components are in the box. Any error in identifying the correct box for your car will usually come from a failure to identify the specific gearbox number that matches your Subaru’s VIN. All the specialist techs at All Drive Subaroo are up to date on all gearbox variants and understand the numbering system fully. You can be sure that an ADS supplied gearbox will be fully compatible with your Subaru. Why not to buy second handThere are many reasons why a second-hand gearbox is not the wisest choice. As noted, there are many compatibility issues, to do with gear ratios, and many minor variations Subaru has incorporated between models. Wrecking yards are not always able to correctly identify the compatible box for you and you could lose a lot of time and money. There is also the issue, particularly in the earlier models, of simply buying the same problems. There is no guarantee that your used box won’t soon fail in the same way as the old box did. TAGS - Transmission NumbersTY752VN5BA, TY752VN6AA, TY754VBAAA, TY755VB1AA, TY754VN1AA, TY754VN2AA, TY755VB2AA, TY754VBBAA, TY754VBBBA, TY754VB4AA, TY754VB5AA, TY755VH4AA, TY757VBBAB, TY754VB6AA, TY755VW5AA, TY754VB7AA, TY755VB7AA, TY758VE1AA, TY758VGZAA, TY758VWABA, TY756U1ZAB, TY756W1ZAB, TY751VIZDA Level 1 - Economy Choice: Rebuilt gearbox, great upgrade for 1991 to 2006 turbo models, but will suit all models What is an Economy Choice level 1 Rebuilt Gearbox?The repaired/rebuilt Subaru gearbox offered by Subaru Gearbox Australia is an excellent alternative to buying second hand. All our rebuilt gearboxes start with a tested and reconditioned 2010 -2012 WRX gear set containing a combination of new and serviced factory internals including gears, hubs, sliders, viscous coupling, gaskets and seals and comes with an 8 month or 10,000 Km warranty, whichever comes first. Serviceable parts within the manufacturer’s acceptable wear limits are reused. Our standard assembly practice includes the use of new genuine Subaru gaskets and sealing compounds. Every gearbox rebuilt by All Drive Subaroo is bench tested to ensure correct gear selection and rotation prior to fitment or dispatch. It should be noted there is a big difference between a level 1 Rebuilt gearbox and a level 3 remanufactured gearbox. The rebuilt box is not as durable as a remanufactured unit because the process of rebuilding is significantly less precise and that translates into lower longevity, which is reflected in the basic warranty we offer with this option. This is a good option for the budget conscious customer, perhaps with an older car, who is looking for a reliable and economical fix to get him or her back on the road. Our rebuilt gearbox will perform well, and reliably. All our Subaru gearboxes are built here at our factory, with high quality genuine Subaru parts. No cheap inferior aftermarket components are used in any of our options. The Economy Choice Subaru gearbox is suited for the budget conscience buyer! Our “rebuilt” process features the following:
Power Rating:The ADS rebuilt gearbox has a power rating of up to 170 Kw at the wheels. Facts about All Drive Subaroo Level 1 Rebuilt Gearbox
This option suits the following vehicles:Impreza WRX 5 speed
Forester GT / XT 5 Speed
Impreza WRX 5 speed
Level 2 - Value Choice: brand new standard internals for the individual seeking an OEM compliant gearboxWhat is a Value Choice level 2 Reconditioned Gearbox?This Gearbox contains NEW Standard OEM factory internals including new gears from 1st to 4th, hubs, sliders, gaskets, seals and tested viscous coupling, and comes with a 12 month or 25 000 km warranty whichever comes first. The Value Choice Gearbox is as close as you can get to a brand new OEM replacement gearbox for your Subaru, featuring new genuine Subaru gears. The overhaul and assembly practice remains the same in the Economy Choice and Best Choice gearboxes that we offer but with the addition of brand new standard factory gears. One would opt for this gearbox when reliability is a strong consideration for purchase. Each gearbox is totally reconditioned using a brand new gearset from 1st to 4th gears and serviced components with a thorough inspection of internal components such as synchroniser cones, bearings, viscous coupling and differential. Our standard assembly practice includes the use of new genuine Subaru gaskets and sealing compounds, every Subaru gearbox is bench tested to ensure correct gear selection and rotation prior to fitment or dispatch of any Subaru gearbox that we sell. The Value Choice gearbox is suited to an individual seeking an OEM compliant Standard replacement gearbox! Facts about All Drive Subaroo Level 1 Rebuilt Gearbox
Power Rating:The ADS reconditioned gearbox has a power rating of up to 170 Kw at the wheels depending on model.
This option suits the following vehicles:Impreza WRX 5 speed
Forester GT / XT 5 Speed
Impreza WRX 5 speed
Level 3 - Best Choice: Brand new Version 5 STI internals, for enthusiasts race and rally provenWhat is a Best Choice level 3 remanufactured Gearbox?The Best Choice is an overhauled Version 5 STI Transmission which is factory tried and proven. It contains NEW and well-proven factory Version 5 STI internals including Brand New OEM gears from 1st to 4th, and new hubs, sliders, gaskets and seals. This gear set has been proven in a number of different applications from street to track, and is more than able with skilled driver control to endure hard driving . There are several 5th gear ratios available and these may be discussed upon job confirmation. Each gearbox is totally reconditioned using new and serviced components with a thorough inspection to internal components such as synchroniser cones, bearings, viscous coupling and differential. Our standard assembly practice includes the use of new genuine Subaru gaskets and sealing compounds, every Subaru gearbox is bench tested to ensure correct gear selection and rotation prior to fitment or dispatch of any Subaru gearbox that we sell. The Best Choice level 3 gearbox comes with a 12 month or 25 000 km warranty whichever comes first warranty. This transmission is For the Enthusiasts that may want to modify their drive line and stay within the manufacturer’s performance division specifications! Our Best Choice gearbox features the following:
Power RatingThe 5-speed STI Best Choice remanufactured gearbox has a power rating of up to 205 Kw at the wheels.
This option suits the following vehicles:Impreza WRX 5 speed
Forester GT / XT 5 Speed
Impreza WRX 5 speed
Level 4 Performance Hybrid Spec 2 gearbox: outstanding performance for the enthusiastWhat is a Performance level 4 Hybrid Spec 2 Gearbox?The ADS Hybrid SPEC II gearbox is strongly endorsed and recommended by many Subaru enthusiasts as the “toughest” OEM Style gearbox available today. It achieves the perfect balance of strength and durability which allows the user to mildly increase power output without jeopardising gearbox reliability and performance. The ADS Hybrid SPEC II gearbox is superior to the other 5-speed gearboxes that we offer, and incorporates all current revisions to enhance reliability and longevity. It is virtually a brand new gearbox that has been redesigned to lessen/eliminate inherent weaknesses found in pre-2010 OEM Subaru five-speed gearboxes. Each gearbox is totally remanufactured using brand NEW revised improved Subaru gears, new and serviced components with a thorough inspection to internal components such as synchroniser cones, bearings, viscous coupling and differential. Our standard assembly practice includes the use of new genuine Subaru gaskets and sealing compounds with every Subaru gearbox bench tested to ensure correct gear selection and rotation prior to fitment or dispatch of any Subaru gearbox that we sell. The perfect balance of strength and durability, over 800 units sold since 2008 with unsurpassed reliability Improved Production Replacement. This is our most comprehensive option for reliability and longevity. The Performance Gearbox is our premium option that promotes reliability and outstanding performance without any modification required to your vehicle. The Hybrid Spec 2 remanufactured gearbox delivers the following benefits:
The Performance Hybrid Spec 2 features the following
Power RatingThe Performance Hybrid Spec 2 remanufactured gearbox has a power rating of up to 220 Kw at the wheels. Facts about All Drive Subaroo Hybrid Spec 2 Gearboxes
This option suits the following vehicles:Impreza WRX 5 speed
Forester GT / XT 5 Speed
Impreza WRX 5 speed
Level 5 - Billet helical and straight cut gear sets – strongest gearbox suitable for motorsportWhat is a Level 5 Billet helical and straight cut Gearbox?These gearboxes are the best options for motorsport applications requiring power output beyond the limits of helical factory manufactured gear sets. ADS have partnered with an Australian engineering firm and have other overseas partners who produce high-quality billet gear sets for the most demanding applications and power ratings of 300 kilowatts or more at the wheels. Billet gear sets come in three variations,
No high strength billet gear set will be as durable as the factory gear set due the large surface contact area. They are super strong, but are not designed for daily motoring and high mileage. In racing applications these boxes are frequently pulled down and rebuilt.
This transmission is for the serious motorsport driver requiring maximum power to the wheels in a competitive environment
Subaru 5 speed Non turbo single and dual range gearboxDual range boxes have been made since the 80s with the Brumby, a popular vehicle for people living on the land. From 91 (EJ series) to 98 Subaru offered the series one dual range box as an option in all non-turbo models with ratios of 1.447 and 1.196. The boxes proved to be very versatile, suitable for inner city shopping excursions, highway cruising, or off-road navigation of rugged terrain. We are also developing a 1.6 ultra-low range “crawler” dual range box for the off-road enthusiast. The dual-range gearbox has proven to be reliable and durable. Although Subaru never fitted the dual range box to their turbo models, ADS have developed a conversion kit for all turbo models and other single-range models. We have also developed a conversion kit specifically for the US market, where off-roading is a popular activity. All dual-range transmission numbers begin with the range; TY752, TY753, TY74, TY755, TY756, TY757, and TY758. Subsequent numbers identify which specific components are in the box. All the specialist techs at All Drive Subaroo are up to date on all gearbox variants and understand the numbering system fully. You can be sure that an ADS supplied gearbox will be fully compatible with your Subaru. Why not to buy second handDifference in ratios are even more critical in the dual range box with more possible incompatibilities. The dual range box also has some inherent weaknesses with bearings, which add to the risk of buying second hand. A rebuilt, reconditioned of remanufactured gearbox from All Drive Subaroo comes with peace of mind and a warranty. All Drive Subaru have all gearbox models and variations in stock. TAGS - Transmission NumbersTY752XHAAA, TY752X1DCA, TY753XR1AA, TY752V4DAA, TY752XR6AB, TY752VRCAB, TY754XKAAA, TY755XS1AA, TY754XR1AB, TY754XFADA, TY754XRAAA, TY754VR1AB, TY754VCAAB, TY754VRAAA, TY754VSBAA, TY754XRBAA, TY754XKBAA, TY755XS2AA, TY754XFBDA, TY754XFCAB, TY754XFCBB, TY754VF3BB, TY754XRBAB, TY754VFCAB, TY752XFCBB, TY754VF4BB, TY754XR4AA, TY755XF3AB, TY757XFAEB, TY757VRAAB, TY754VF5BB, TY757XFADB, TY755XF4BA, TY757VFABB, TY754VS5AA, TY755XF5BA, TY754VF6AB, TY754XR6AA, TY757XFBDB, TY754VR7AA, TY754VT7AA, TY757VFCCB, TY757XFCCB, TY754XR7AA, TY754XT7AA, TY755XF7BA, TY757XFCBB, TY757XFDBB, TY757XFDCB, TY757VDDAB, TY758VT1AA, TY758XFADA, TY758XFACA, TY758VFAAA, TY758XFZBA, TY756WCAAA, TY756WCABA, TY756WT5AB, TY751SDZDA, TY756WT5BB Level 1 - Economy choice: standard rebuilt gearbox, great for the low budget and reliableWhat is an Economy Choice level 1 Rebuilt Gearbox?The repaired/rebuilt Subaru gearbox offered by Subaru Gearbox Australia is an excellent alternative to buying second hand. All our rebuilt gearboxes start with a tested and reconditioned OEM Subaru gear set containing a combination of new and serviced factory internals including gears, hubs, sliders, viscous coupling, gaskets and seals and comes with an 8 month or 10,000Km warranty, whichever comes first. Serviceable parts within the manufacturer’s acceptable wear limits are reused. Our standard assembly practice includes the use of new genuine Subaru gaskets and sealing compounds. Every gearbox rebuilt by All Drive Subaroo is bench tested to ensure correct gear selection and rotation prior to fitment or dispatch. It should be noted there is a big difference between a level 1 ”Rebuilt gearbox “and a “level 3 remanufactured gearbox”. The rebuilt box is not as durable as a remanufactured unit because the process of rebuilding is significantly less precise and that translates into lower longevity, which is reflected in the basic warranty we offer with this option. This is a good option for the budget conscious customer, perhaps with an older car, who is looking for a reliable and economical fix to get him or her back on the road. Our rebuilt gearbox will perform well, and reliably. All our Subaru gearboxes are built here at our factory, with high quality genuine Subaru parts. No cheap inferior aftermarket components are used in any of our options. The Economy Choice Subaru gearbox is suited for the budget conscience buyer! Our “rebuilt” process features the following:
Facts about All Drive Subaroo Level 1 Rebuilt Gearboxes
This option suits the following vehicles:Impreza 5 speed
Forester 5 Speed
Liberty/Outback 5 Speed
Level 2 - Value choice: reconditioned gearbox for peace of mindWhat is a Value Choice level 2 Reconditioned Gearbox?This Gearbox contains Standard OEM factory internals including best inspected gears from 1st to 5th, hubs, sliders, gaskets, synchros, seals and tested viscous coupling, and comes with a 12 month or 25 000 km warranty whichever comes first. The Value Choice Gearbox is reconditioned gearbox which is built as close as possible to manufacturers specifications. The overhaul and assembly practice remains the same between the Economy Choice gearbox but with the addition of more new parts. One would opt for this gearbox when reliability is a consideration for purchase. Each gearbox is totally reconditioned using a inspected gearset from 1st to 5th gears and serviced components with a thorough inspection of internal components such as, viscous coupling and differential. Our standard assembly practice includes the use of new genuine Subaru gaskets and sealing compounds, every Subaru gearbox bench tested to ensure correct gear selection and rotation prior to fitment or dispatch of any Subaru gearbox that we sell The Value Choice gearbox is suited to an individual seeking an OEM compliant Standard replacement gearbox! Our Value Choice gearbox features the following:
This option suits the following vehicles:
Impreza 5 speed
Forester 5 Speed
Liberty/Outback 5 Speed
Level 3 - Best choice: remanufactured gearbox for long service life and robust endurance.What is a Best Choice level 3 Remanufactured Gearbox?This gearbox features many internal revisions that address known inherent problems with some production Subaru gearboxes. The Best Choice transmission has the latest components fitted to satisfy reliability and function. Each Best Choice Subaru gearbox has a brand NEW revised 4 kg viscous coupling fitted as standard and is assembled with our best practice policy. All internal components such as synchro cones, bearings, and sliding sleeves are renewed to ensure that the integrity of the gearbox isn’t jeopardised by faulty or worn components. Our standard assembly practice includes the use of new genuine Subaru gaskets and sealing compounds with every Subaru gearbox bench tested to ensure correct gear selection and rotation prior to fitment or dispatch. The Best Choice option comes with a 24 month or 50,000Km warranty whichever comes first. The Best Choice Gearbox is our premium option that promotes reliability and outstanding performance! Our Value Choice gearbox features the following:
Facts about All Drive Subaroo Level 3 Gearboxes
This option suits the following vehicles:Impreza 5 speed
Forester 5 Speed
Liberty/Outback 5 Speed
Level 4 - Performance dual range off road “Extreme application”, for the enthusiast.What is a Level 4 performance dual range Gearbox?These gearboxes contain the best and strongest available dual-range gears from 1st to 5th. We select the most robust and up to date hubs, sliders, gaskets, synchros, seals and viscous coupling. Each performance dual range gearbox is hand built to order by our specialist Subaru gearbox technicians. These boxes will suit the keen off-roader, needing serious grunt to navigate rocky or sandy terrain. Our standard assembly practice includes the use of new genuine Subaru gaskets and sealing compounds, and every Subaru gearbox is bench tested to ensure correct gear selection and rotation prior to fitment or dispatch. Warranty terms vary with application, up to 12 months or 25 000 km warranty, whichever comes first. Off road enthusiasts take note: new 1:6 ratio high-low range boxes coming soon! The performance dual range gearbox provides reliability and maximum torque transfer, grip and handling capabilities for All-Terrain Dual Range Subaru Vehicles Option 1 : Ultimate TourerThis gearbox starts as one of our remanufactured overhauled gearboxes that incorporate a shorter 1.447 low range gear set. Fitted to the front differential is a gear type limited slip that provides reliable traction on most surfaces. We have a selection of 5th gear ratios for customers seeking the best fuel consumption possible when touring. This option includes a standard tested viscous coupling. Option 2 : Ultimate PerformerThe gear ratios selected in this gearbox are chosen to work with the 2.5lt naturally aspirated engine. We adopt a very short 1st gear for off road use to work in conjunction with the shorter 1.447 low range gear. This gear set uses a dual synchro-cone for 1st gear enabling better selection on the roll. To ensure maximum reliable grip on all road surfaces we build these gearboxes with a gear type limited slip differential for extreme reliability and performance. This option comes with a brand new revised 4 kg viscous coupling. Various 5th gear ratios are available to suit individual needs.
Option 3 : Ultimate Warrior1st gear is virtually a crawler gear when combined with our 1.61 custom made low range gear set and a 4.4 final drive ratio. This option includes a clutch-type limited slip diff differential for extreme performance. Each of the above gearboxes is totally remanufactured using the best revised improved Subaru gears, new and serviced components with a thorough inspection of internal components such as synchroniser cones, bearings, new revised 4 kg viscous coupling and differential. Various 5th gear ratios are available to suit individual needs. If your desire is to go seriously off road then you cannot go past this gearbox Our Performance off Road All Terrain Transmissions offer the follow:
This option suits the following vehicles:Impreza 5 speed
Forester 5 Speed
Liberty/Outback 5 Speed
Subaru 6 speed STI and Liberty gearboxThe Ultimate OEM Subaru GearboxThe six speed box is by far the best and strongest gearbox Subaru have ever made, and with the highest level of operability. The six-speed gear set is nearly twice the size of the earlier five speed and twice as strong. The six speed box (non-DCCD) was introduced in 2002 in the WRX STI, and revived interest in the Subaru brand. The STI still uses the six-speed box, but since 2003, the DCCD version. Subaru are aware that in some ways this gearbox is the centrepiece of their premium performance models, and have invested considerable time and money into ongoing research and development. The six-speed DCCD gearbox has gone from strength to strength and has no known issues. These gearboxes tend to run smoothly until they simply wear out. Most of the problems we see have to so with worn sliders and synchros, and general wear caused by hard use. All these transmission numbers start with TY856. Subsequent numbers identify which specific components are in the box. All the specialist techs at All Drive Subaroo are up to date on all gearbox variants and understand the numbering system fully. You can be sure that an ADS supplied gearbox will be fully compatible with your Subaru. Why not to buy second handWhile in some ways the six-speed makes a better buy second hand than earlier 5-speed boxes, (if you can find a low mileage example) any second hand box carries with it some risk to the buyer, in this case primarily to do with the level of wear and the kind of usage the box might have had. Many second hand boxes come in from overseas, and this raises additional compatibility issues. A rebuilt, reconditioned of remanufactured gearbox from All Drive Subaroo comes with peace of mind and a warranty. All Drive Subaru have all gearbox models and variations in stock. TAGS - Transmission NumbersTY856WB1CA, TY856WX3CA, TY856WX4CA, TY856WVBAA, TY856WVCAA, TY856WB6KA, TY856WG7KA, TY856WWDAA, TY856WWDAD, TY856WG8KA, TY856WPDAD, TY856WG8KD, TY856WPEBB, TY856UG1KA, TY856WWEAA, TY856UGIKA Level 1 - Repair your own: keep the original gearbox, saving money6-Speed Repair optionUnlike most Subaru manual transmissions, where repair is not a viable option, the six-speed is a much better proposition for repair, and depending on mileage and the extent of the damage, it might be an economic proposition to repair rather than replace. The most common problems with the six-speed STI box are jumping out of 4th 5th and 6th gears, worn forks, and worn hubs. All these components are easily replaceable and readily available. This option keeps your car fully original with matching numbers. It also saves you a lot of money on a reconditioned exchange box. Advantages to repairing your own box include:
The specialist techs at All Drive Subaroo can quickly assess your 6-speed gearbox problem and help you to make an informed decision. If you have already removed the gearbox, and can bring it to us we will do a free strip and quote for you. If we have to remove the gearbox to assess it, there will be a labour charge. In some cases your gearbox can be repaired in a day. If more extensive repairs are needed we will talk you through the process.
This option suits the following vehicles:WRX/STI 6 speed
Liberty GT/RB 6 speed
Level 2 - Reconditioned gearbox: reliabilty and swap-and-go convenienceWhat is a Level 2 reconditioned swap-and-go 6-speed STI gearbox?This gearbox features many internal revisions that address known inherent problems with some production Subaru gearboxes. The 6-speed STI transmission has the latest components fitted to satisfy reliability and function. Each exchange reconditioned Subaru gearbox has a new 4 kg viscous coupling fitted as standard and is assembled with our best practice policy. All internal components such as synchro cone, bearings, and sliding sleeves and forks and rods are renewed to ensure that the integrity of the gearbox isn’t jeopardised by faulty or worn components. The Precision Assembly process includes specific measurements of sliding sleeve positions using the Subaru special tool height gauge to determine accurate shift rod offsets. Each Gearbox is bench tested prior to dispatch. Our standard assembly practice includes the use of new genuine Subaru gaskets and sealing compounds with every Subaru gearbox bench tested to ensure correct gear selection and rotation prior to fitment or dispatch. The exchange reconditioned option comes with a 12 month or 25,000Km warranty whichever comes first. Each exchange reconditioned Subaru 6-speed gearbox normally includes:
Power Rating:The 6-speed STI Level 2 reconditioned gearbox has a power rating of up to 300 Kw at the wheels. Facts about All Drive Subaroo Level 2 6-speed exchange gearboxes
This option suits the following vehicles:WRX/STI 6 speed
Liberty GT/RB 6 speed
Level 4 - STI 6MT Conversions to from five to six speed for all models 1991 - 2016Introducing the best Subaru gearbox ever made, now available in a complete conversion kit for 5-speed modelsThe six speed STI box is the best manual transmission Subaru has produced so far and is the centrepiece of the Subaru performance range. It’s the ultimate driver’s gearbox with closely spaced ratios, quick shift action and the strongest gearset yet produced by Subaru. The 6-speed box has proven to be a winner both on the rally circuit and for daily motoring. Owners who bought 5-speed models can stop fuming and rejoice. There’ll be no more broken second and third gears; ADS can now offer a STI 6-Speed conversion kit so owners of 5-speed models can enjoy the precision, driveability and durability of the STI 6-speed. The kit contains all you need to do the job yourself, with all modified parts included. The team at ADS will support and guide you through the process and assist with any questions. Of course, you could always have ADS remove the old box and fit the new one for you. We have an efficient team and a well-equipped workshop, able to get your car in and out with minimum fuss and of course you will know the job is done right. Short of buying a brand-new WRXSTI this is the best upgrade you can get for your five-speed WRX . This conversion package includes:
Power Rating:The 6-speed STI conversion gearbox has a power rating of up to 300 Kw at the wheels. Facts about All Drive Subaroo 6-speed conversion gearboxes
Subaru 6 speed cable shift gearboxNew 6-speed boxes for WRX and Diesel ModelsFollowing the success of the later 5-speed boxes, Subaru came out with the cable-shift split-case 6-speed gearbox with overdrive which is ideal for long-distance cruising. 4th 5th and 6th are all “overdrive” gears reducing cabin noise and increasing fuel efficiency. The new cable system provides a shorter gear throw and better feel. The wide range of gear ratios makes for a smooth transition from urban to highway driving. These gearboxes are found in WRX, and all manual diesel models from 2010 on. Although it is early days, these boxes have so far proven to be robust and reliable with a high level of customer satisfaction. We have however noted some issues with reverse gear. These boxes appear similar to the five speed box, and with the designation “6-speed” in the name, they are sometimes confused with the STI six-speed. Because earlier model five-speeds with the 4:4 gearbox ratio tend to rev a little too high on the freeway, the newer six speed variant would make a useful upgrade. All Drive Subaru are currently developing a conversion process to adapt these newer boxes to earlier five speed models. Box numbers start with TY756, with subsequent numbers identifying which components are in the box. All the specialist techs at All Drive Subaroo are up to date on all gearbox variants and understand the numbering system fully. You can be sure that an ADS supplied 6-speed cable shift gearbox will be fully compatible with your Subaru. Essentially, buying a used replacement gearbox is a gamble. The first risk is incompatibility. If your gearbox has incorrect final drive ratios, catastrophic viscous coupling failure could be the result. Second hand gearboxes are not inspected internally and there may be existing defects which mean another expensive repair. A rebuilt, reconditioned of remanufactured gearbox from All Drive Subaroo comes with peace of mind and a warranty. TAGS - Transmission NumbersTY756WLAAA, TY756W1ZAB, TY756U1ZAB, TY756W1ABB, TY756WCABA, TY756WCAAA, TY756WT5AB, TY756WT5BB Level 1 - Standard rebuilt gearbox, reliability on a limited budgetWhat is an Economy Choice level 1 Rebuilt Gearbox?The repaired/rebuilt Subaru 6-speed cable shift gearbox offered by Subaru Gearbox Australia is an excellent alternative to buying second hand. All our rebuilt gearboxes start with a tested and reconditioned OEM Subaru gear set containing a combination of new and serviced factory internals including gears, hubs, sliders, viscous coupling, gaskets and seals and comes with an 8 month or 10,000Km warranty, whichever comes first. Serviceable parts within the manufacturer’s acceptable wear limits are reused. Our standard assembly practice includes the use of new genuine Subaru gaskets and sealing compounds. Every gearbox rebuilt by All Drive Subaroo is bench tested to ensure correct gear selection and rotation prior to fitment or dispatch. It should be noted there is a big difference between a level 1 “Rebuilt gearbox” and a level 3 “remanufactured gearbox”. The rebuilt box is not as durable as a remanufactured unit because the process of rebuilding is significantly less precise and that translates into lower longevity, which is reflected in the basic warranty we offer with this option. This is a good option for the budget conscious customer, perhaps with an older car, who is looking for a reliable and economical fix to get back on the road quickly. Our rebuilt gearbox will perform well, and reliably. All our Subaru gearboxes are built here at our factory, with high quality genuine Subaru parts. No cheap inferior aftermarket components are used in any of our options. The Economy Choice Subaru gearbox is suited for the budget conscience buyer! Our “rebuilt” process features the following:
Facts about All Drive Subaroo Level 1 Rebuilt Gearboxes
Level 2 - Reconditioned gearbox for peace of mind
What is a Value Choice level 2 Reconditioned Gearbox?This Gearbox contains Standard OEM factory internals including new OEM gears from 1st to 6th, hubs, sliders, gaskets, synchros, seals and tested viscous coupling, and comes with a 12 month or 25 000 km warranty whichever comes first. The Value Choice 6-speed cable shift gearbox is a reconditioned gearbox which is built as close as possible to manufacturer’s specifications. The overhaul and assembly practice remains the same as the Economy Choice gearbox but with the addition of more new parts. One would opt for this gearbox when reliability is a consideration for purchase. Each gearbox is totally reconditioned using a new gearset from 1st to 6th gears and serviced components with a thorough inspection of internal components such as, viscous coupling and differential. Our standard assembly practice includes the use of new genuine Subaru gaskets and sealing compounds. Every Subaru gearbox is bench tested to ensure correct gear selection and rotation prior to fitment or dispatch of any Subaru gearbox that we sell. The Value Choice gearbox is suited to an individual seeking an OEM compliant Standard replacement gearbox! Our Value Choice gearbox features the following:
Level 3 - Remanufactured gearbox for long service lifeWhat is a level 3 Best Choice Remanufactured Gearbox?This gearbox features many internal revisions that address known inherent problems with some production Subaru gearboxes. The Best Choice transmission has the latest components fitted to maximise reliability and function. Each Best Choice Subaru gearbox has a new revised 4 kg viscous coupling fitted as standard and is assembled with our best practice policy. All internal components such as synchro cones, bearings, and sliding sleeves are renewed to ensure that the integrity of the gearbox isn’t jeopardised by faulty or worn components. Our standard assembly practice includes the use of new genuine Subaru gaskets and sealing compounds. Every Subaru gearbox is bench tested to ensure correct gear selection and rotation prior to fitment or dispatch. The Best Choice option comes with a 24 month or 50,000Km warranty whichever comes first. The Best Choice Gearbox is our premium option that promotes reliability and outstanding performance! Our Level 3 Best Choice gearbox features the following:
Facts about All Drive Subaroo Level 3 Gearboxes
Deceptive AppearancesCritical facts about compatibility among Subaru gearboxesThe automotive industry, and especially Subaru, engage in a great deal of parts sharing between models and this has created a situation in which many gearboxes look alike, but have small variations from model to model which mean they are not interchangeable. We have spoken about these minor variations in gearboxes and they are the cause of ongoing problems with sourcing compatible replacements. Your supplier might tell you that some of these differences are minor and don’t matter, but they do. The major problem we have noted with gearboxes fitted with mis-matching numbers is incorrect ratios which can result in damage to front, center and rear diffs with a resultant repair bill higher than the original replacement gearbox. Incorrect final drive ratios will also affect driveability with the gearbox ratios not properly matched to the engine torque characteristics and rev range. Seemingly minor variations can have a major effect on the drivability and reliability of the car. They can affect the accuracy of the speedo, the operation of the clutch, the operation of neutral and reverse switches, and many others, some of which are noted below. Pull type and push type gearbox found in the turbo modelsThe story of the push-pull gearboxes begins in 1991 and is still being written, with some models still running the 5-speed manual gearbox. The earlier turbo four-bolt models (Series 1, 91-98) had many problems associated with the early pull-type gearbox. While these gearboxes worked well, with a positive, quick action and were enjoyable to operate, the power generated by the turbo engines, especially when driven by younger more enthusiastic drivers, was often too much for 2nd and 3rd gears and there were frequent failures. In 99 Subaru moved to an 8-bolt gearbox, (Series 2, 99-01) which was better shifting, and incorporated several other improvements. There were however still some problems with 2nd and 3rd gear breakages. This led to widespread customer dissatisfaction, which prompted Subaru to redesign the 8-bolt gearbox with a larger and more robust gear set. There are many small variations in the pull-type gearbox from 1991-2005 that prevent fitting boxes between models. In 2006 Subaru made a major change with the introduction of the push-type clutch gearbox and some changes in gearbox internal configuration that resulted in smoother shifts and enhanced all-round operability. The gearbox was finally all it should have been from the start in terms of useability and durability. However, the push-type gearbox, with its extended thrust snout, brought with it new and different problems.
Incorrect diff or gear ratiosIt’s all too easy to install a mis-matching gearbox to your Subaru. On the outside they look almost identical, but there are critical internal differences. Many customers have been caught out buying a used gearbox and installing it only to have the new box catastrophically fail almost immediately, often causing additional damage to the viscous coupling and the front and rear differentials, or they find that their new Subaru drives poorly in a number of ways . Simply put, there are two kinds of possible mismatch with gearbox ratios, and two main effects. Final drive mismatchThis type of mismatch will cause differing driven speeds at the wheels. The problem of course is that on the road all four wheels are forced to turn at the same speed. This sets up an intolerable strain on the whole driveline system. There is no margin for error with this. If the gearbox has this kind of mismatch the result will be disaster. This problem can occur with both manuals and autos. There are four different final drive ratios available for AWD Subarus, 3.7, 3.54, 3.9, 4.1 and 4.4. Internal gearbox mismatchThese mismatches are more subtle. Your gearbox won’t catastrophically fail and you will be able to drive your Subaru over distances without disaster occurring. But it won’t feel like the same car. Gear ratios might be too closely spaced, or too far apart. This type of mismatch will affect several aspects of general operation. The engine might labour under ratios too high for the load, or over-rev if the ratio is too low. The speedometer will give inaccurate readings. General drivability is greatly diminished, as is fuel efficiency and engine service life.
The only way to be sure you
have the correct gearbox is to match it with your Subaru’s VIN.
Single range and dual range gear box found in the non turbo modelsThe differences here are multiplied by the two different types of box available for non-turbo models: dual range and single range. Within each range there are the usual model variations. The dual range gearbox, available only in non-turbo models, is unique to Subaru. The main differences between single and dual range are as follows:
Dual Range Models
What is a centre differential or viscous coupling? So many different typesThe essential character of the Subaru is in its unique symmetrical All Wheel Drive (AWD) system. With its flat boxer engine set back over the front wheels, Subaru have achieved a 50-50 weight distribution, the same balance as a Formula 1 race car. Combine that with power being distributed to all four wheels, and the ability to vary torque output from front to rear and back to compensate for wheel spin, and you have just about the most poised and satisfying production car on the road, below $100,000. Literally at the center of the AWD system is a compact device that transfers power from the transmission to the front and rear differentials, the viscous coupling, fitted to all manual AWD Subarus. A viscous coupling in the simplest terms is a device for transferring torque from a spinning transmission shaft to the front and rear differentials of your Subaru. It serves also to vary the torque to front and rear wheels, depending on driving conditions. Basically the viscous coupling is a sealed steel cylinder containing a number of slotted disks immersed in highly viscous liquid silicon. Power is transferred from the input shaft via the silicon fluid and disks to the output shafts front and rear. When front or rear wheels spin under power, say, on a wet road, the corresponding output shaft will spin faster, generating more heat at its end, which causes the silicon to solidify and prevent torque from being transferred to the spinning wheels. By default, power is redirected proportionately to the other two drive wheels. The silicon is very sensitive to temperature and reliquefies almost instantly once the temperature drops. The system works so well that the driver is usually unaware of it. Centre diff between 1991 to 1998 5 speed manualThese are the longest-serving and most reliable viscous coupling Subaru have produced. Properly maintained these older 4 KG units last a very long time, and they can be disassembled and serviced. Moving parts and bearings can be replaced, but not the discs or the viscous fluid itself. These units are easily recognised by their dark cast iron finish. They were also available in optional competition variants (8 KG or 20KG) designed to handle more aggressive driving styles. These are now obsolete, although the standard 4 KG units are still available new and used. Also available on RA or Spec C models in the Japanese market was a similar unit with DCCD, also now obsolete. These were just as robust and reliable as the early 4 KK viscous coupling. The addition of DCCDE made them very popular in the motor sport rally scene.
Centre diff between 1999 to current 5 speed manualThis model has been fitted to all 5MT models since 1999 in single and dual range. It is not as robust and reliable as the older 4KG viscous coupling, and tends to fail from 120,000 kilometres. Units are sealed and non-serviceable so defective units must be removed and replaced. They are less expensive than the older models and easier and quicker to remove and replace. These were also available in 8, 12 and 20 KG models, which are now discontinued. This model may be distinguished from earlier models by its stainless steel casing. Also available on RA or Spec C models in the Japanese market was a similar unit with DCCD, also now obsolete. These were just as robust and reliable as the early 4 KK viscous coupling. The addition of DCCDE made them very popular in the motor sport rally scene.
Centre diff 6 speed STI non-DCCD unit and DCCD unitThe non-DCCD center diff is one of the more recent viscous couplings and is used in the 6 speed Liberty and WRX STI models. It is a reliable unit and there are a few variations available. These also use a stainless steel casing, but there is no external bearing and they a little smaller overall. They are available in 10 KG and 20 KG bias refuse lock for motor sport application. This model was used in the 02-04 WRXSTI before this model moved to the DCCD type. All Liberties still come with this type of viscous coupling. The DCCD viscous coupling is fitted only to the 2005-current WRX STI. The system uses two center differentials, one computer controlled and the other a mechanical unit that reacts faster. The driver is able to switch bias between the two differentials to fine-tune the driving experience. This model is recognisable by the two-part housing and the external wiring harness . .
Evolution of the Subaru Automatic TransmissionFrom 4AT to 5AT to CVTThe current design of Jatco automatic transmission being used in Subaru models, the 4EAT was introduced in 1988 in the Subaru XT6 and Leone Touring Wagon, in a four speed. The basic design has survived but with greatly revised internal set-up, plus the introduction in premium models of a 5-speed variant with sports shift, the 5EAT, based on the Jatco JR507E. Both variants have proven to be reliable and long-lasting with many vehicles passing through our workshop with 200,000 plus kilometres on the original transmission. Subaru owners have been very satisfied with the way these transmissions feel, and the general driveability, especially the sports paddle shift operation of the 5EAT. Like all automatic transmissions however there has been a small price to pay for the convenience and reliability of automatic transmission, and that price is diminished performance, and increased fuel consumption over the manual equivalents. But now it appears that even those drawbacks have been eliminated with the introduction of the Lineartronic Constant Velocity Transmission (CVT). This transmission relies on a system of variable width pulleys and chains which takes power from a locked torque converter and feeds it constantly to the transfer case. As the load on the engine increases, the width of the pulleys increases, resulting in diminishing gear ratios. Changes in gearing are constantly variable and uninterrupted, meaning that power delivery is perfectly smooth, and the engine is kept constantly at optimum RPM. This system eliminates that familiar lurch, or forward surge during gear shifts and the “hunting” between gears under load than can occur with a conventional auto transmission. For drivers who enjoy changing gears there is the option of a “virtual” 6 or 7 speed manual where the driver can hold the car at specific ratios and change up or down with a steering wheel mounted paddle. This gearbox is more efficient than even the six speed STI manual gearbox, and slightly more economical on fuel. While it’s too soon to know for sure, the CVT box, with so few moving parts and no friction surfaces should be a very long-lived unit. Box numbers start with TZ1A, TZ1B, TG5C, TG5D, TR580 and TR690 with subsequent numbers identifying which components are in the box. All the specialist techs at All Drive Subaroo are up to date on all gearbox variants and understand the numbering system fully. You can be sure that an ADS supplied gearbox will be fully compatible with your Subaru. TAGS - Transmission NumbersTZ102ZG2AA, TA102AH1AA, TA102AH2AA, TZ102ZGAAA, TA102AHAAA, TZ102Z3CBA, TZ102ZGCAA, TZ102Z3DAA, TZ103ZR1AA, TZ102Z3DBA, TZ102YB5BA, TZ102ZR5AA, TZ1A4ZFAAA, TZ1A3ZB2AA, TZ1A4ZFABA, TV1A4ZFAAA, TZ1A3ZS2AA, TZ1A2ZR7AA, TZ1A3ZS3AA, TZ1A4ZFCBA, TV1A4YVCAA, TZ1A4ZRCAA, TZ1A4ZFCAA, TZ1A3ZN3AA, TV1B4YVDAA, TZ1A3ZN3BA, TZ1A4ZFDBA, TZ1A4ZRDAA, TZ1A4ZR2AA, TZ1A4ZFDAA, TV1A4YMEAA, TZ1A4ZFEBA, TZ1A3ZF4AA, TZ1A4ZF3AA, TV1B4YN3AB, TZ1A4ZREAA, TZ1A4ZFEAA, TV1B4YNEAB, TZ1B7LHABA, TZ1B7LSAAA, TZ1A3ZF5AA, TZ1B7LFAAA, TV1B4YN5AB, TZ1B5LHYAA, TZ1A4ZF5AA, TZ1B7LFABA, Z1A4ZR5AA, TZ1A4ZF2AA, TZ1B5LWXAA, TZ1B7JLFAAA, TZ1A3ZF6AA, TZ1B7LF444, TZ1B5LGWAB, TZ1B5LFWAA, TZ1B7LTCAA, TZ1B7LFCBA, TZ187LFCAA, TZ1B7LFCAA, TZ1B4LT7AA, TV1B8MCEBA, TZ1B8LT1AA Level 1 - Economy choice, standard rebuilt transmission, great for the low budget and reliableWhat is an Economy Choice level 1 Rebuilt Automatic Transmission?The repaired/rebuilt Subaru auto transmission offered by Subaru Gearbox Australia is an excellent alternative to buying second hand. The Level 1 Economy Choice Subaru automatic transmission is essentially a used item that we inspect and re-assemble with tested and serviceable components. It comes with an 8 month warranty or 10,000Km. Each unit is supplied according to exact vehicle model specifics. All Items such as clutches, brakes and internal planetary gear sets are inspected for serviceability. External seals are renewed to prevent transmission oil leaks. It should be noted there is a big difference between a level 1 Rebuilt transmission and a level 3 remanufactured transmission. The rebuilt box is not as durable as a remanufactured unit because the process of rebuilding is significantly less precise and that translates into lower longevity, which is reflected in the basic warranty we offer with this option. This is a good option for the budget conscious customer, perhaps with an older car, who is looking for a reliable and economical fix to get him or her back on the road. Our rebuilt transmission will perform well, and reliably. All our Subaru transmissions are built here at our factory, with high quality genuine Subaru parts. No cheap inferior aftermarket components are used in any of our options. The Economy Choice Subaru automatic transmission is suited for the budget conscience buyer! Our “rebuilt” process features the following:
Facts about All Drive Subaroo Level 1 Rebuilt automatic transmission
Level 2 - Value choice, reconditioned transmission for peace of mindWhat is a Value Choice level 2 Reconditioned Automatic Transmission?This Subaru transmission is completely reconditioned and overhauled containing new and serviced parts that complies with our strict overhaul practice and comes with a 12 month warranty or 20,000Km. The Value choice transmission has crucial components replaced such as internal oil seals, this is an important element in an automatic transmission as fluid pressure is the means of power transfer. One would opt for this gearbox when reliability is a consideration for purchase. Our standard assembly practice includes the use of new genuine Subaru gaskets and sealing compounds with every Subaru transmission. The overhaul and assembly practice remains the same between the Economy Choice automatic transmission but with the addition of more new parts. One would opt for this automatic transmission when reliability is a consideration for purchase. Each automatic transmission is totally reconditioned with a thorough inspection of internal components. Our standard assembly practice includes the use of new genuine Subaru gaskets and sealing compounds, every Subaru automatic transmission bench tested prior to fitment or dispatch of any Subaru gearbox that we sell. The Value Choice automatic transmission is suited to an individual seeking an OEM compliant Standard replacement transmission! Our “Value Choice” process features the following:
Level 3 - Best choice, remanufactured gearbox for long service life and robust endurance.What is a Best Choice level 3 Remanufactured Automatic Transmission?This transmission features many internal revisions that fix known inherited problems that are seen with some production Subaru transmission and comes with a 24 month warranty or 50,000Km. Our Best Choice Subaru automatic transmission features many internal improvements that fix known inherited problems. This Option is similar to the Value Choice transmission option with the addition of a new genuine Subaru control valve body fitted. (The valve body is the internal electronic/mechanical control regulator responsible for gear shifting) Each Subaru automatic transmission is carefully assembled and pressure tested by our very experienced transmission builder achieving Subaru assembly specifications. Our standard assembly practice includes the use of new genuine Subaru gaskets and sealing compounds with every Subaru transmission. The Best Choice option comes with a 24 month or 50,000Km warranty whichever comes first. The Best Choice Automatic Transmission is our premium option that promotes reliability and outstanding performance! Our “Best Choice” process features the following:
Facts about All Drive Subaroo level 3 Remanufactured Automatic Transmission
What transmission does a 05 WRX have?Five-speed manual and four-speed automatic transmissions are available on all models but the STi. All models come with an extensive list of standard equipment.
What transmission does a manual WRX have?Quick-Shifting 6-Speed Manual Transmission
The 2022 WRX gives you total control over your performance with a responsive 6-speed manual transmission controlled through a precise, accurate shifter.
Is a WRX a 5 speed?The WRX 5-Speed can be reliable up to roughly 350 wheel horse power with the Legacy GT/8-14 WRX gears, STI Version 6-gears, or the STI RA Gears, provided the car is not launched. If you are trying to launch the car for maximum acceleration, this is what the 5-speed just doesn't tolerate well for very long.
Can you get a Subaru Impreza with a manual transmission?Yes, Subaru still offers a manual gearbox for those interested in a more engaging driving experience. There are fewer and fewer manual transmission options every year, but Subaru has manual gearbox option for a number of vehicles ranging from the standard model Impreza to the fully tuned WRX STI Limited.
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2005 subaru impreza wrx transmission 5 speed manual
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