SQ Engineering 4A/7A to W58 Transmission Adapter Kit

Regular price $342.00
Kit Type

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Genuine SQ Engineering Product
-Suitable for 4AGE / 4AFE / 7AFE / 7AGE
-Utilizes common T50 bell housing
-Adapter plate of 6061 Aluminum
-Includes pre-made thrust carrier
-Optional 4AGE to W58 clutch disc

This adapter plate allows any boost hungry or abusive Toyota drivers a nearly bolt-in solution for replacing the anemic T50 transmission with a robust W58 found at the local wrecking yard.  SQ Engineering has done their homework and is providing the Toyota community with a very carefully thought out kit.   We are stocking the pre-made thrust carrier to provide a bolt-in and go solution. 

From SQ Engineering:

"Features and advantages

These adapter kits have been designed from the ground up to be unlike all others. The key features are below.

- Won't load up and destroy your clutch and gearbox: In a rather ironic and unpleasant twist every other adapter plate on the market that has been seen by us is prone to cause gearbox bearing failure, main shaft breakage and excessive clutch wear. This is due to there being no definate aligment between the adapter plate and the back of the bellhousing. It's not possible to fix this problem with a different adapter plate design alone, so we did something else- provide an additional part that guarentees that the gearbox is located dead true every time.

- Adapter thickness / clutch spline enagement: Many kits have the clutch spline run partially off the end of the input shaft, even without a failure it will still result in additional clutch disk wear due to increased movement. To address this our adapter plates where made to be as thin as possible and as a result an off the shelf clutch disk will have near complete spline engagement.

- Gearbox angle: Using this adapter kit we guarentee that the gearbox will not be tilted at all when fitted behind a 4age engine. The original factory tilt of the 4age has accurately been compensated for so the gearbox runs how it should and without a gearstick that ends up leaning to one side.

- Fasteners supplied: With each kit are all the fasteners for the bellhousing, gearbox and the adapter kit parts.

- Real information and support: People should not have to do their own research after buying an adapter to fit it into place. For the greatest simplicity each kit will be provided with extensive and easy to follow information. In these will be things such as a step by step install guide, various photos / diagrams and compatible clutch types with part numbers."

 **Please choose if you'd like the kit with or without an Exedy OEM style clutch disc to suite 4AGE 200mm flywheels to W58 gearbox.