88 Tranny in My 1995 Gt

You have two options.
1. You use the bellhousing from the 88 and you will have to trim the hole where the shifter comes through.
2. You will have to get a bellhousing and a input shaft and bearing retainer off of a 94-95 car.

BTW, the 92 and up I believe are stronger than the earliers. Have a higher strength alloy 2nd and 3rd gears.
 
i have a 93 t-5 in my car and i used the bell of the 93 also. all i had to do different was modify my tranny crossmember and a 5/8" (i think thats the size) spacer for the driveshaft. that was it. if you plan on any power in your car then get a newer tranny cause those pre-92's (i think 92 they upped the torque rating) are gonna break with some decent power
 
I have a Tremec 3550 in my car now. I had to lengthen the driveshaft 5/8ths of an inch. They didn't make the spacers back then. 92 and newer T-5s have case hardened gears. You use ATF in them instead of gear oil.

Kurt
 
i put a 90 lx trans in my buddies 94. as you already said, you need the 88 bell as well as the 88 clutch fork.

we put a 94 fork in it but had to grind the bell out for it to fit and then grind a small corner off the end so it wouldnt hit the car body under heavy acceleration. (trial and error)

as far as the shifter went, it fit right in. 5/8ths wasnt even noticable. it was already a 5spd car so dont know about the floor for sure for you.

the cross member went without modding, the holes were slotted so it allowed the trans forward no problem. once again this was an already 5spd car/crossmember.

the drive shaft could use a 5/8ths spacer too to get full bite on the splines although we did not and never had a problem. it just hangs out farther.
is the aode shaft the same lenght as the 5spd anyways?

so if you didnt know, which i think you said you did, the basic problem is the pre 94s were 5/8ths shorter in the input shaft and bell. the clutch fork also comes in the bell at a different rotation (closer to the body of the car) but not a prob.