[Anyone know if the front brake rotors for an '87 4000 fwd and 4000 quattro are the same? I bought a new set of rotors on e-bay (for my quattro) that I now suspect are only for the fwd variant, any difference?? Thanks- Jason Gray Anchorage AK] Yes different. 4X100 not the required 4X108 lug pattern. The Q rotors are also thicker. Ben