Stock rotor is 10.4". See if you can find one that size that will fit the knuckle and caliper. Just not out there.None of the "big" car rotors fit on our regal spindles?
Just curious....why do you need a 5 on 5" bolt pattern? I didnt read what you were trying to accomplish. Sorry if I missed it.I am looking for a brake rotor that has a 5x5 bolt pattern that will fit on my stock G body spindle...any ideas?