Posted By: gss
Brake drum out of round tolerances? - 05/06/12 11:03 PM
Nobody around here turns rotors and drums anymore and my new drums have about .005" runout. What is acceptable?
Most of the ones I use off the shelf are fine, but after measuring a few, I would say none are perfect. The first set I got shook the vehicle when braking. I measured those at .050" out of round.
Do I need to find someone to cut the new ones?
Posted By: mikemee1331
Re: Brake drum out of round tolerances? - 05/06/12 11:28 PM
nobody where you live can do drum brakes?? where is this?
Posted By: bboogieart
Re: Brake drum out of round tolerances? - 05/06/12 11:42 PM
Most older independent shops still do it (for cash and cheap).
They won't have specs for the drums of older cars, but can do a clean up cut no problem.
Some of the chains act like you are just a pain if you ain't looking to buy new.
Posted By: gss
Re: Brake drum out of round tolerances? - 05/07/12 01:35 AM
I'm sure somebody can cut rotors here. My question is how far out of round before it affects the braking?
Posted By: 70Cuda383
Re: Brake drum out of round tolerances? - 05/07/12 02:03 AM
well, bell housing runout should be less than .005, so I'd venture to say that if your drums are .005 out of round, that's probably also a safe number.
if it still pulsates, make sure the shoes aren't glazed over creating slick spots