do 99+ grand am 2 and 4 door seats...front and back bolt up in my alero 4dr...or do i need to modify things to make it work

the 4 doors should fit no problem. the 2 door fronts should fit. not sure about the 2 door rears

anyone else know if 2 dr ones work?

i dont see why they wouldn't

fronts are the same.......... rears are different u have to get 4dr specific seats

ya, the sides of the backs are different. you MAY be able to use the bottom and most likely the 2 piece that fold down on the back.

the front seats aren't the same, but there's no reason why they shouldn't be interchangeable though. (2-door ones fold down to the front, 4-door ones don't.)