question about rims again
 

I looked on a bolt pattern site and it says that the bolt pattern for an 04 Grand Am is the same as the bolt pattern for my 92 SSE Bonnie, just wanna know if this is true.

Sense 87 it's been 5x115 bolt pattern.

Yes this is true but the ga's have a deeper offset so watch out, they might sit in. I put a set on my cutty and they were way in there. I don't know about bonnies though.

To fix that all I would need is a spacer right?

and longer studs

The right kind of spacer with the hub milled into it.