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The '61-'71 Dodge Sweptline Truck Forum #32

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Subject:   Broken brakes....
Name:   JimmieD
Date Posted:   Jul 11, 08 - 10:54 PM
IP Address:   66.81.199.35
Message:   Got a question here fer the brain trust.

I've got 2 vehicles with brake problems, one disc/drum, the other drum/drum. Problem on disc truck is warped rotors. Problem on drum truck is drums out of round.

Got to thinking: how the heck do the drums get out of round or the discs warped??! I mean the axle is in the center and the drum rotates around it, like a piece chucked into a lathe. There's a bearing that allows only very minimal 'play, and the shoes are designed to apply fairly equal force on that round and spinning inner surface.

I can see them wearing out, sure, but out of round doesn't really make sense to me.

Similar with the disc getting warped: center axle & minimal play bearing, even pressure on disc as rotor spins, yet they get warped.

Seems more likely that you could install a slightly out of round drum, or a slightly warped rotor, and brake actuation over many miles would correct those problems, but it doesn't work that way. Seems a real curious thing to me, and yet very common.

Ideas?
Replies:    
Re: HA HA this is a test by George (AB) · Jul 11, 08 - 11:07 PM
Re: Re: HA HA this is a test by George (AB) · Jul 12, 08 - 1:30 PM
The Wonders Of.... by Hobcobble · Jul 12, 08 - 5:42 AM
Re: The Wonders Of.... by pat · Jul 12, 08 - 10:53 AM
Re: Broken brakes.... by little doug · Jul 12, 08 - 8:05 AM
Re: Re: Broken brakes.... by butch romig · Jul 12, 08 - 10:52 AM
Re: Broken brakes.... by Fred · Jul 12, 08 - 11:14 AM
Re: Re: Broken brakes.... by JimmieD · Jul 12, 08 - 2:06 PM
Re: Re: Re: Broken brakes.... by MoparNorm · Jul 12, 08 - 6:08 PM
Re: Re: Re: Re: Broken brakes.... by JimmieD · Jul 12, 08 - 10:41 PM
Re: Re: Re: Re: Re: Broken brakes.... by Kaegi · Jul 13, 08 - 10:57 AM
Re: Re: Re: Re: Re: Re: Broken brakes.... by MoparNorm · Jul 13, 08 - 9:40 PM


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