2002 ws6 wheels on 91 bird

i recently aquired a set of 2002 17' trans am ws6 wheels and they do not fit. i know they will with either spacers or adapters. has anyone ever done this that could help me out.

Thinking spacers.

But I am not sure. I am saying spacers because of how much wider the WS.6 rims are.

Yes, you are going to need spacers, the 3rd gen (and 2nd gen and probably 1st) rims are different from the 4th gen, I think your either going to need 1.75" or 2", cant remember off the top of my head.