question on brake drums

Discussion in 'Trucks [ Eighteen Wheelers ]' started by gunner76, Jun 2, 2010.

  1. gunner76

    gunner76 Medium Load Member

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    how many sets of shoes do you run before you replace the drums. I have the airlight drums and the second set of shoes are getting close to needing replacement. Should I replace the drums too or are they ok for another set. I felt inside and they are wore down a little but not really that bad and are wore even across.
     
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  3. beltrans

    beltrans Medium Load Member

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    You have to measure an inside diameter of a drum, dealers should have a tool to do it. Maximum alowed diameter can be found someplace on a drum.
     
  4. Floyd

    Floyd Light Load Member

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    Beltrans is correct. There should be a maximum allowable diameter stamped somewhere on the drum. Usually it's just outside the pilot hole where the hub bolts on.
    If this measurement is getting close I would replace them. Problem being, that even by installing new shoes you won't get the full braking potential. The old drums are more likely to distort and your brakes will fade sooner because there isn't enough "meat" on the old drums to absorb the heat.
    Also visually inspect the drums for any heat/stress cracks.
    However, if your old drums are still well within spec and pass a good visual test then run 'em.
    Good luck, hope this helps
    Floyd
     
  5. gunner76

    gunner76 Medium Load Member

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  6. 112racing

    112racing Road Train Member

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    i usually go 2 sets to 1 drum never had a problem if the drums get too thin they can explode
     
  7. Jfaulk99

    Jfaulk99 Road Train Member

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    we always replace the drums every time. Their cheap, usually grooved pretty bad and cheap insurance. However we usually use pretty mean shoes so eat drums, but they stop great!
     
  8. black_dog106

    black_dog106 Road Train Member

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    Good advice J. Brakes are not a place to be cutting corners.
     
  9. earthmover

    earthmover Medium Load Member

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    whats the going price on drums i plan to replace the ones on my dump this yr..thanks
     
  10. Jfaulk99

    Jfaulk99 Road Train Member

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    Just bought a pallet of them and they were $65 each American made. Got prices between $80 and $65 each depending on dealer.
     
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