I found a 1998 firebird, 3.8L at my local pull it yourself junkyard. i have talked to a few of you in the past about this but am wondering if i need to take the entire hub assembly too? or just the calipers and brakets (rotors on it are shot). if not, how do i put a F body rotor, that has a different bolt pattern than the gp's, on my car? are they close enough that if i buy an aftermarket rotor, it will fit directly to my gp hub? thanks for any help guys.