Hi I've started a new topic for this query rather than continue on my older CV joint one. I'm replacing the callipers/discs/pads front and back on my 1994 Corolla GXi. All parts on order from various recommended websites. Front callipers came off easily so no issues there. New callipers are OK and I've cleaned the calliper brackets up and they seem OK. The back ones however is a different matter. There is an odd fitting on one of the fixing holes. One is a normal bolt but the