New Products: W58-T50 Adaptor

Stop your searches for the scarce custom W58 bellhousings made out of unobtanium! The W58 to T50 adaptor plate is here! :)

Well known AE86 community contributor Assassin10000 already made great write ups in the past about the SR5 to GTS conversions, 4AGE distributor rebuild and even the Celica Supra MA45/46/47 axle swap. This time he came up with an ingenious idea: instead of seeking for a whole bellhousing, why not make an adaptor plate for the W58 gearbox and the T50 4AGE bellhousing!

As you can see it fits right between the W58 and the 4A-GE bell housing:

Of course you will need some modifications because of the added space between the two:

With the additional height the adaptor plate adds, you have to space the pilot bearing to match. Otherwise your input shaft will be floating in the air on the crank side. …
With the adaptor causing the clutch disc to sit further forward on the input shaft. That also meant the throw-out/clutch release bearing has to sit further forward to engage/disengage the clutch. That meant there was a chance it could slide off the input shaft collar (what guides it) and catch when trying to let off the clutch. Which would REALLY be no good during a clutch kick… or anywhere else for that matter.

So I had a weld on extension for the clutch release carrier made, by opening up the correct size I.D. in a piece of chromoly tube on the lathe.

You are now probably eager to know where you can buy this plate: unfortunately you can’t since this is a one-off adaptor plate. However he is thinking about making several copies if there is demand and if the production costs are not too high. Let’s hope the costs are within boundaries because I think there is certainly demand for this modification!