Looking for some sound advice concerning a brake sequel at light brake pressure coming from the rear. I've already taken the rotors off, lightly sanded the rotors w/ my orbital sander (no rust lip on the rotor). Angled the edges of the G.M.pads, all the stuff to eliminate the noise. The car had sat for several years and you can still see where the pads sat during that time creating a hard spot. I'm at the point of lightly machining the rotors, (they have never been cut prior) but I really don't want to do that for several reasons. What are your thoughts on machining or is there an alternate 'fix'? Thanks, Tim #26883
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Re: 73 Rear Brake Sequel
Tim,
If you have the rear rotors machined, you will have to dial them in for minimum runout after. The rotors were originally machined perpendicular to the spindle centerline. When you cut the rotor without the spindle you can end up with rotor wobble. That can also create squeal as well as hydraulic pumping of air into the calipers. Before cutting and redialing the rotors I would also check for spindle end play from loose bearings. This can cause a squeal. No matter which way you go, make sure you keep the rotors on the same side they came from. Hope this helps. Good luck! WB
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