wheel question

[daves87gn]

looking for wheels for my GN came across these. Will these fit my GN the seller didnt know back space only that the came off 2000 firebird
2-18x7.5 and 2-18x9.5 HP Design wheels w/lug nuts off a 2000 firebird

 

[49-blues]

the firebirds and camaros usually have a deeper backspace so more than likely you ll need 1/2"-1" spacer. we can usually go up to 4.5" bacespace and the firebirds maybe like 5.5" backspace,have the guy measure the mounting flange to the end of the inside rim using a straight edge across the wheel.