are all b-series cluthes and flywheel's interchangable i have heard that the 90-91 clutch/tranny there was something different or it won't fit and i was wondering b/c a store that is going out of business(so its pretty cheap) has a b-series combo and i am wonding if it will fit

 

90-91 clutch discs are different than 92+ (to match different input shaft sizes). Everything else will interchange freely.