I have an 87 Turbo 4runner, automatic. I have 204K miles on the drive train. IMO its time to either rebuild or replace. I was going to go with a Marlin Crawler swap out or rebuild but my hopes where crushed when I told them I have an automatic. So far I cant find anyone in Southern Cally that will upgrade gears because of the automatic. Cal Mini trucks said they will swap out to a 5 speed W56, but I think it wont be strong enough for the turbo. I was wondering is it worth it or does anyone have any other ideas I can go with. Sorry for my life story, just want to make sure I get it done right the first time.

 

upgrade the gears in the tranny? Or tcase? If you mean tcase, check out Jim @ inchworm gear. He JUST announced dual cases for the a340H tranny..

http://www.pirate4x4.com/forum/showthread.php?t=377855

 

i would just swap it to the 5spd. w56's are plenty strong, its basically the same as the transmission behind the 2.7L taco motor

 

This news is worth it's own thread:

https://www.yotatech.com/forums/show...160#post657160

Thanks for the heads up Rockota.

 

W56 will be fine behind the 4cyl turbo, i run one behind my inline 6 7MGTE turbo and its holding up fine for my driving style. If you do burnouts etc all the time there arent alot of trannies that will hold out for long.