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No one turns drums any more?; squealing rear brakes, but plenty of material
Topic Started: Nov 23 2014, 06:40 PM (1,491 Views)
David95237


Old Man
Nov 24 2014, 06:41 PM
Does anyone 'arc the brake shoes' anymore?
Seems no one even mentions that process.
Learned how to do that in High School. Never seen it done again. The shoes are made with a compromise for the size.
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Mythstae
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David95237
Nov 24 2014, 06:49 PM
Old Man
Nov 24 2014, 06:41 PM
Does anyone 'arc the brake shoes' anymore?
Seems no one even mentions that process.
Learned how to do that in High School. Never seen it done again. The shoes are made with a compromise for the size.
http://en.wikipedia.org/wiki/Drum_brake
 
Re-arcing: Before 1984, it was common to re-arc brake shoes to match the arc within brake drums. This practice, however, was controversial, as it removed friction material from the brakes and reduced the life of the shoes as well as created hazardous asbestos dust. Current design theory is to use shoes for the proper diameter drum, and to simply replace the brake drum when necessary, rather than re-arcing shoes.
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Cobb
BANNED

Old Man
Nov 24 2014, 06:41 PM
Does anyone 'arc the brake shoes' anymore?
Seems no one even mentions that process.
We use to trim the leading edge so the brakes would less likely lock up when applied.

It wasnt long after that, that most cars that needed brakes were disks and rotors. The drums seldom needed replacing other than brake seals, adjustment and wheel bearings.
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Richard123vmt


They still turn drums but the economics is all in favor of new ones. Even a drum turned within specs is not as good as a new one. You are right about the costs of new studs. That's why you should reuse the old ones.
Edited by Richard123vmt, Nov 25 2014, 12:59 AM.
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Cobb
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I visited quite a few auto stores and even looked on ebay. NAPA has a store in a high crime area that turns brake parts. They can only get the shoes from Highpoint, NC. Advance Auto cant help me. Auto zone has the shoes, but no hardware ever for the 10 inch drums.

I decided at this point to just go to rockauto and get all parts by the same company, raybestos. So got 2 new drums for the 4 door model, shoes, springs and wheel studs. :cheers

The 4 door uses 10 inch drums, the 2 doors 8 inch. :shake

Makes me want to reconsider a rear disk brake conversion kit. :drivin
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