Ok so I just need a conferation on this. Are the driveshafts for the 3rd gen and 4th gen the same? I remember reading somewhere that they are but I'm not 100% sure. There's a guy where I live selling his from a 91 and it's cheap so I might pick it up until I have the cash for an aluminum one but don't know if they are the same.

 

I had bought and used an aluminum driveshaft on my 96. When I sold the car, I kept the shaft. Later I got a 91, and used the same driveshaft. Does that answer it well enough?

 

Yep should answer it enough.