hi, guys, wonder that s4 tranny can be interchangeable with s5 tranny? like 5spd to 5 spd, auto to auto?
a long time ago, there was real nice rx7 guy did a detail measurement on the driveshafts for all 2nd gen models. just don't remember where I found it before. as least, I know s5 5 spd tranny can be used on s4.

thanks

 

Ibelieve the trannies are all the same except for one which I think is the auto. NOT SURE but most should just bolt on.

 

https://www.rx7club.com/forum/showth...5284&highlight
Read down...Kevin has a good description.