I recently changed the rear pads and rotors on my 94z. When I installed the new rotors they contact the caliper on part of the rotation. But not in the typical side to side way. The rotor wobbles up and down and carved a nice little V into the caliper housing.

I thought it was the wheel bearing, but it has no feelable play up and down, and no noise when driving other than the squeak from the rotor. So I replaced both of the rear wheel bearings, seals and fluid. Now that my car is back together it still contacts in the exact same spot.

I brought it to 3 different garages and they all said that the caliper bracket was bent, but I disagree. The contact is not constant it is only on one side of the rotation, and if I flip the rotor on the hub the contact point stays the same, so it is not the rotor.

Could I have tweaked my axle enough to make this contact? And how would I go about checking them. I have it all apart again, and want to have each axle checked.

 

find a piece of metal or whatever that you can secure to the car in a way that it will be close to the rotor so when you spin it you can see if the rotor is wobbling. so if you take the rotor off the other side and use it on the bad side it still does it?

 

First you referred to rotors and how "they" contact the caliper. After that you're only referring to a single rotor, axle bearing, housing, and axle. So.....is it just one side, or both doing it? What you're describing sounds like a bent axle. I'd jack both rear wheels off the ground, remove one rotor, and have someone spin the opposite wheel so you can see if the axle hub is bouncing.

 

ya sorry for the bad description. It is only one side, its the passenger side rear wheel. And yes I've tried swapping the rear rotors, it made no difference. And both axles are currently out of the car. I was thinking of bringing it to a machine shop and having them put it in a lathe and spin it. For some reason I think the end of the axle might be tweaked enough to hit on part of the rotation.

 

anybody?

 

Since you have the axles out, taking them to a machine shop to be checked for true would be the next sensible step, short of you putting them back in the housing and spinning them yourself. I still stick with my original hunch that the axle end at the hub is tweaked. Did you ever smack into a curb or pothole?