Are they all the same for all transmissions? I have a 4sp, (wish i had a 5sp) and does the clutches have a difference? I am thinking they do.

 

just beware of the phony ones, and nto sure if how many gears it have matters, but make sure if you dont know to count the spindles and the length of the disc, but would recommend just getting a new clutch kit

 

89-91 Clutches are the same, 4 speed or 5 speed, it doesn't matter. 88 has a different spline count.
(I'm sure I'm leaving out more details)

I've installed a few of the F1/Gripforce clutches with 0 problems or customer complaints.