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rear brakes lock up...help!

Discussion in 'The Garage' started by PsychoticDeadGuy, Aug 9, 2005.

  1. PsychoticDeadGuy

    PsychoticDeadGuy 1/2 ton status

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    I just finished my 14bff swap, or so i thought. i took it down the street and it drove great...until i pressed the brakes...the passenger side locked up on the 14bff. is it just because of the larger brakes or what? i am running 33s on it front & rear. whats the deal? whay doest the driverside lock up? should i replace the drums and shoes? or what? thanks
     
  2. clarkjw24

    clarkjw24 1/2 ton status GMOTM Winner

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    could be a leaky wheel seal or cylinder. The pads get saturated with oil/fluid and it creates an instant grab with the slightest touch of the brake. Or if its got a gov loc you may have a problem with that.

    Check for wet shoes. If so, fix leak and replace with new shoes.
     
  3. PsychoticDeadGuy

    PsychoticDeadGuy 1/2 ton status

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    the side that did have the seal leek doesnt lock up...its the clean side that does...i got the dirty side almost near clean. i dont have the money to spend on those 1 ton brakes right now...it is an open diff i believe...
     
  4. perp

    perp 1/2 ton status

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    I second the oil soaked pads.
     
  5. clarkjw24

    clarkjw24 1/2 ton status GMOTM Winner

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    If its an open diff then new shoes would prob fix it.
     
  6. PsychoticDeadGuy

    PsychoticDeadGuy 1/2 ton status

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    ok, i will do the shoes, anyone know about how much they cost? with the hardware kit? i need to have this running in 2 weeks...
     
  7. clarkjw24

    clarkjw24 1/2 ton status GMOTM Winner

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    Looks like around $25 to $35 for the riveted Wearevers. Make sure to take the old ones with you for the core and to make sure you get the right ones.

    I think $12 for the kit.
     
  8. 4wheelattitude

    4wheelattitude 1/2 ton status

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    Did the brakes release at all?

    Did the brakes release?
     
  9. PsychoticDeadGuy

    PsychoticDeadGuy 1/2 ton status

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    yes, they do release after i let off. then it will drive fine until i try to stop again. why?
     
  10. R72K5

    R72K5 Banned

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    some trucks just do this, you have to remember that rears of empty trucks are light, and the big brakes in the FF's make it easy for this to happen, ive seen it happen alot,

    from my own personal experience, leaking brake fluid on shoes will cause lockup.. and very, very easily


    or they could be metal to metal, which ive seen happen also

    or the truck has great brakes and is just too light in the rear, or the prop combo valve may be faulty and letting too much fluid to the rear


    thats always possible too,

    stuff is old, has wear
     
  11. PsychoticDeadGuy

    PsychoticDeadGuy 1/2 ton status

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    it locks up with almost no brakeing though...i guess i will just change the pads and see what happens
     
  12. 4wheelattitude

    4wheelattitude 1/2 ton status

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    I have had a few things cause the lockup. soaked pads of course, air in the t valve let one side work and not the other and a brake hose collapsed on the inside causing it to work like a check valve.
     
  13. JIMs70K25

    JIMs70K25 1/2 ton status

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    back off on the adjuster.
     

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