ok i think i broke something in my transmission so im going to buy my friends 99 Z28 t56 tranny. What is the main difference between the years...what would i need?? (i know the clutches are 93-97 and 98+) would a 99 t56 work in my car.someone describe the differences if you know em. Thanks Mark

 

all i know is the later years (94+) have a .50 6th gear opposed to the .62 in the 93's....so youll go lower down the road

 

You might want to check with others, but I was under the impression that they are not directly interchageable. The input shaft on the LS1 is longer than the LT1, the bolt pattern is not the same and the clutch is a different design, with the LS1 being a conventional "pusher" with the T/O bearing pushed by a slave cylinder that is concentric to the input shaft and mounted directly on the front cover of the tranny, as opposed to the "pullback" clutch used in the LT1.

 

yeah it is different but if i changed the bellhousing(they are interchangable) then would it be possible?? also...my friend has a 99 Z28..and he would give me everything from the master cylinder down to the pedals....i just dunno what id need to do it..

 

The only way that is going to work is if you change the input shaft on the tranny as well as the bell housing. By the time you've done this, I think you will find it is easier to find a tranny that will fit without modifying. How do I know this? I tried to put a tranny into my car that had an over long input shaft. I found out the the input shaft was from an LS1. Cost of new shaft with related bearings etc 400. Cost of install?

Good luck.