alright so im having a problem with d series trans. with my boosted d16z6 motor im only running 7 psi and the input shaft locked up on the first one so i put in a s20 trans in and the same thing is about to happen i lost 2nd gear and it sounds like the input shaft bearings are about to shatter so basicly im tryin to figure out what kind of trans to use or what i can do to make them last longer or stronger any help would be appreciated

 

You aren't going to find a D tranny that has a strong ISB. You'll have to do a tranny conversion.

 

Never heard of anything like this but I just started messing wit d series what I'm guessing is you have 2 get some type of adapter plat and mount a b series trans