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11inch Brake Conversion?

Discussion in 'Early CJ5 and CJ6 Tech' started by johnny and sandy, Dec 1, 2019.

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  1. Dec 1, 2019
    johnny and sandy

    johnny and sandy Member

    San...
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    11 inch brake conversion. is there a good website that I can go to look at that would explain how to do the conversion. I have been reading somewhere that you cannot use the original 15 inch rims when you convert to 11 inch is that true? Does anyone know can I use my 15 inch rims if I go with the living in set up from a wagon? and is there any other hidden things I need to know that could pop up looks like the old mushroom effect. Don't know if I really want to spend all the money for the 11 inch Parts if I'm going to have to buy all new rims and tires that would be a real pain in the, shall we say neck
     
  2. Dec 1, 2019
    johnny and sandy

    johnny and sandy Member

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    sorry the 11" set-up from a willys wagon
     
  3. Dec 1, 2019
    mickeykelley

    mickeykelley Well-Known Member

    Republic of Texas
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    All Willys wagons came with 15" wheels and the 11" brakes. Be aware they were not the bendix self adjusting style.
     
  4. Dec 1, 2019
    jpflat2a

    jpflat2a what's that noise?

    Riverside CA
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    I wouldn't spend the time and/or money on the early 11" brakes.
    That's just my opinion.
     
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  5. Dec 1, 2019
    cayenne

    cayenne Member

    central Texas
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    I used 11” unfinned drums from r&p jeep (I think they closed?) with what I think were original 15x5.5” wheels and they worked. Your results may vary.
     
  6. Dec 1, 2019
    CHUGALUG

    CHUGALUG New Member

    Silverton, OR
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    You want to upgrade to Wagoneer 11" brakes say 68-72 the only part you need to source are the backing plates everything else you should buy NEW and almost everything is available from NAPA I think the E brake Spreader bar you have to find somewhere else. If you keep your old school transfer case mounted E brake then not a concern. A pair of Backing plates shouldn't cost more then about 80-100 and many times less. WELL worth the effort. Be sure to also upgrade to a Dual Master Cylinder and don't forget the residual pressure valves and an adjustable proportioning valve to tune the system front to back.
     
  7. Dec 1, 2019
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member Sponsor

    Tantallon, Nova...
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    I'd recommend not using those Lockheed units, get the Bendix 11" setup from a 70's jeep.
     
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  8. Dec 1, 2019
    PeteL

    PeteL Member Sponsor 2019 Sponsor

    Hills of NH
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    Curious. Why not?

    I have no problem using manual eccentric adjusters... I've seen too many "self adjusters" frozen up.
     
  9. Dec 1, 2019
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member Sponsor

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    I find adjusting the eccentrics to be problematic- without a whole lot of experience at tweaking them, which I freely admit I've apparently never obtained, my experience is that they will, when you least expect and/or need it, take your straight towards the nearest ditch/tree/phone pole/oncoming 18 wheeler.

    And the bendix parts are available at any FLAPS.
     
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  10. Dec 1, 2019
    PeteL

    PeteL Member Sponsor 2019 Sponsor

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    Thanks. I have access to both types so that's why I asked.
     
  11. Dec 1, 2019
    Tom_Hartz

    Tom_Hartz Member Sponsor 2019 Sponsor

    North Carolina
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    I'm running 15" rims and my CJ stops great with 11" drums.
     
  12. Dec 2, 2019 at 5:54 AM
    Rick Whitson

    Rick Whitson Detroit Area Sponsor 2019 Sponsor

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    I am doing an 11" brake up grade now, I bought a set from a member off a 70- 71 CJ5 Front backing plates, complete with shoes and spring kit and good drums. I had them stripped and now need to paint them. I got new shoes with them but plan to replace the spring and adjuster kit with new, and keep the rest for down the road. My Jeep has 66 axels on it with 10" brakes on it, that were all new when I bought the donor Jeep, so I used them. They work OK, but I want to up grade anyway. I don't need disc brakes on a Jeep that goes maybe 60 mph on a downhill, and is used mostly for Forest Viewing, Trail Riding, and an occasional Car Show. Good luck
     
  13. Dec 2, 2019 at 8:30 AM
    colojeepguy

    colojeepguy Colorado Springs Sponsor 2019 Sponsor

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    Anti-seize on the threads
     
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  14. Dec 2, 2019 at 10:36 AM
    PeteL

    PeteL Member Sponsor 2019 Sponsor

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    Every time. (y)
     
  15. Dec 2, 2019 at 11:11 AM
    mickeykelley

    mickeykelley Well-Known Member

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    Now you tell me.
     
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  16. Dec 2, 2019 at 12:39 PM
    timgr

    timgr Jeepin' Nerd Sponsor 2019 Sponsor

    Medford Mass USA
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    I've always used white lithium grease, spread thinly with a flux brush. Sufficient, it seems. The adjusters always lengthen as the shoes wear, so the lubricated threads are protected until they are needed.
     
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  17. Dec 2, 2019 at 2:28 PM
    PeteL

    PeteL Member Sponsor 2019 Sponsor

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    Unless you are backing them off to get the shoes out of a worn drum.
     
  18. Dec 3, 2019 at 10:30 PM
    CHUGALUG

    CHUGALUG New Member

    Silverton, OR
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    When I went to college for auto tech back in the stone age we were taught to use Lubriplate on the pads the shoes rode against on the backing plates and to lube the self adjusters with a little wipe of it as well. I still have the can of Lubriplate I bought for that class in 1979 Guess I don't do a lot of brake jobs.
     
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