hello,

i have a 97 z28 vert my rear left caliper bracket keeps hitting the rotor and i cant figure out why. it started doing this on the last brake and rotor change and has gotten worse with the new brakes i've just installed. i have changed both rear calipers for other reasons and it didnt help also there is the same amount of end play on both axles so i dont think thats it. any help would be great

 

when you say its hitting, is it cutting into the rotor? Or when you apply the brakes its hitting occasionally?

 

did you use brake pad grease when changing pads

 

if i hit the brakes hard it will cut into the rotor. if i courner hard it will hit the rotor and make a very loud squealing noise. also a few times after i parked the bracket was up against the rotor its not cutting into the rotor but its almost like glazing the rotor. craby i use high temp synthetic ceramic brake grease and the slides but not on the pad backs

 

You didn't happen to compare the old to new rotors? Sounds like the new may be slightly bigger around. Or, it has a tremendous amount of rust build up on the outer edge.

 

no i didnt i changed the pads and rotors about 6 months ago the old rotors where acdelco and the new ones are powerstop drilled and slotted rotors. both sets of rotors and pads did the same exact thing.

 

 

you can see how close the bracket is on the first pic

 

something is not right. do you have part numbers front the calipers you put on it. do you have traction control?

 

it would be hard to do, but is it possible you flipped the caliper bracket?