are all third gen doors the same.like 82 base go on an 89 base or 85 ta on 88 and so on . I'm fairly new at this stuff even though im 52. I,ve got an 86 base and a 90 base but the 90 has ground efects.got a friend thats got an 85 in mi. that needs both doors.

 

All 82-92 Camaro & Firebird doors are physically the same. The only differences you'd find, are in the ground effects & the holes in the doors to mount them. And the interior panels, of course.

 

you mean camaro doors will fit a bird

 

Yep. Only differences are the holes for the ground fx (or lack of holes) & the door panels inside (which are direct swaps). Only interior physical differences are GTAs had different arm rests, so there is an additional bracket (which can be removed) spot welded (maybe bolted) to the doors.