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I have a 2000 F250 V10 SD that I have owned for about 3 years. Recently I replaced the front brakes and rotors. When I removed the calipers, there were thick washers (shims???) between the caliper and its mounting surface. I had purchased some life time warranty brake pads and when I tried to assemble them, I couldn't get the caliper to assemble over the rotor unless I left the thick washers off. I feel that the washers (shims) were never intended to be there in the first place. Maybe I am wrong. The other problem I have is these brake pads squeal alot. Drives me nuts!!!
There are shims that fit over the entire brake pad. Are the new ones like that?
A round shim? that's very strange, my 2001 didn't have them stock, so...
As to the squeal, use anti-squeal "glue" on the back of the pads, and reassemble. It always helps with mine. I can always tell when the brakes have been abused, and the glue has failed. They squeel. Take everything apart, clean, use glue again, no squeel.
These are thick washers. Probably about .09 thick. They go on the outside of the caliper, between the caliper and the surface that it mounts to. The two bolts that hold the caliper in place go through these washers.
As far as the squeal goes, It only does it for the first few miles after it has sat for several hours. I had assumed that it was due to the high metallic content of the pads, to make them durable, rubbing off the rust from the day before. When I put the pads on, I put the anti-squeal / rattle grease on the backs of the pads.
Sounds to me like the previous owner had a problem with pins or rotors and tried to correct it by moving the carrier over with washers rather than fixing the real problem. I've done mine - no washers or shims between carier & spindle assembly. The caliper is a floating design, which means it is supposed to self center on the rotor. If the pins are seized, the caliper won't self center; hence the "shims". For the squeal, I'm on board with krewat in using a good brake grease on the backs of the pads.
Thanks guys. I didn't use the washers when I replaced the rotors and pads. I kept them though, just in case........ I agree that the previous owner, may have put them in to increase pad life. The pads have been in for a couple of months now. I think I will pull the pads, clean them, grease them and put everything back together again to try to get rid of the squeal. Thanks again..
Get ceramics. In my chevy all the semi mettalics squealed no matter what I did. I have yet to do the brakes on my super duty but that is what they will get.
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