Reverse Squeaking Problem?
I've been suffering vibration around 70mph for a while and I'm currently waiting for replacement front wheel bearings to see if that's the problem (dealer's tech not sure!). This has been warping the brake discs as the discs are fixed to the hub and anything that causes the wheel to wobble will pull the disc unevenly through the calipers. Given the fine tolerances even when the brakes are off, I'd think this is most likely causing constant heating as it rubs, warping the discs and glazing up the pads. Result - squm when reversing slowly.
Any vibration problems? Do the wheels feel warm after a long high speed run, even if only using moderate braking? Both symptoms in my case.
My vibration was very faint (almost impossible to notice most of the time) from 15,000 miles but by 30,000 was noticable at 73mph almost all the time.
Will post if bearings fix the problem (when I finally get them!).
Sounds like your discs are clipping on the rotors, probably warped as you say.



