do you guys know if seats from a bretta gtz or gtu fit in a 3rd gen j body?

fit yes, stock frame work-no

you would need to do a completly custom framework under the seat to work with the cavalier floor. the beretta seats are placed into the floor via angled tracks on both sides of the floor. they arent 'bolted' in traditionally. a pretty retarded idea for sure, the back of the slider frames ALWAYS rip out of the floor and it makes for a freaking nightmare to fix.

thanks, maybe i will go with somthing else

dont get me wrong, the gtz/z26 seats are really neat, i dont think it would be THAT hard to create a bracket for the underside to mate up with the j-body studs.