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10 Or 11 Inch Brakes

Discussion in 'Intermediate CJ-5 and CJ-6 Tech' started by cj573, Dec 30, 2017.

  1. Dec 30, 2017
    cj573

    cj573 New Member

    Pittsburgh
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    How can I tell what size my back drum brakes are? cj5 72-75 dana 44, Any numbers on the backing plate and where would they be. Can i measure the backing plate.I do not have the old brakes to compare with
     
  2. Dec 30, 2017
    Focker

    Focker Ran when parked... Runs while moving. Staff Member Sponsor

    Tri-Cities WA
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    One thing I do know is you can't assume they're "stock". If you measure the backing plates you should have roughly a 12" backing plate for 11" brakes.
     
  3. Dec 30, 2017
    sterlclan

    sterlclan Member Sponsor

    exploring the...
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    11 inch if they are stock
     
  4. Dec 30, 2017
    cj573

    cj573 New Member

    Pittsburgh
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    when I measure the backing plates and they are 11'' then are the brakes 10''
     
  5. Dec 30, 2017
    timgr

    timgr Jeepin' Nerd Sponsor

    Medford Mass USA
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    Inside diameter of the drum is the relevant measurement. 10" brakes ended in 1971 for the CJs. Take the drum off and measure. Post a pic if you are unsure.
     
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  6. Dec 30, 2017
    Daryl

    Daryl Sponsor Sponsor

    Bonney Lake, WA
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    Yes if the backing plate measures 11" across they are 10" brakes.
     
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  7. Jan 6, 2018
    heavychevy

    heavychevy Sponsor Sponsor

    Danielsville georgia
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    I'm with the general consensus that 72 thru 75 had 11 inch brakes.
     
  8. Oct 25, 2018
    cj573

    cj573 New Member

    Pittsburgh
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    Here are 2 pictures 1 of the backing plate and the drum,do I have the right parts for 11 inch brakes,also are the brakes on correct,thanks in advance
     

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  9. Oct 25, 2018
    Daryl

    Daryl Sponsor Sponsor

    Bonney Lake, WA
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    Appear to be 11" brakes.
     
  10. Oct 25, 2018
    timgr

    timgr Jeepin' Nerd Sponsor

    Medford Mass USA
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    Those are Bendix brakes. 11" brakes were Bendix. The earlier 10" brakes are different, with links not a cable IIRC.

    Look at figures 9-22 and 9-23 here. http://oljeep.com/gw/74_tsm/9-BrakesWheels.pdf This is the left side; the right side is the mirror image of the left.

    There are left and right hand adjusters. Make sure the brakes tighten when the self-adjusters tighten. Pull on the cable and the lever will climb the star wheel. Then release, and the lever will turn the star wheel. This turning must tighten the brakes, ie the adjuster must lengthen and the shoes move apart.

    The finned drums were used in '74 and '75. They'll work on a '72 or '73, which came with a plain drum.
     
    Last edited: Oct 25, 2018
  11. Oct 25, 2018
    cj573

    cj573 New Member

    Pittsburgh
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    Another question. How long are the wheel cylinder links be. I lost all 4 of mine got a replacements but not sure if they are the correct ones
     

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