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Rear Disk Brake/parking Brake

Discussion in 'Early CJ5 and CJ6 Tech' started by Rozcoking23, Jun 7, 2022.

  1. Jun 7, 2022
    Rozcoking23

    Rozcoking23 RUN & GET BIT!

    Stockton, CA
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    I finally got tired of my transfer case parking brake not working. I replaced the rear 11” drum brakes with Cadillac rear disks with parking brake, the brakes work great.
    The problem:
    I used the original t-handle parking brake. When I go to set the parking brakes I can’t get enough leverage to set the brakes. If I disconnect the cable from the brakes the cable and handle move with no issues. Is it possible that with the pull handle I’m not getting enough leverage to operate the parking brakes. Maybe I need to go to a foot operated type lever. What’s you opinion.
     
  2. Jun 8, 2022
    Jw60

    Jw60 Airbender and interrupter of the light guard. 2022 Sponsor 2021 Sponsor 2020 Sponsor

    Sedalia MO.
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    You can make a lever to apply more mechanical advantage in the cable. Handle further from fulcrum than the wheel cables.
     
    Ol Fogie likes this.
  3. Jun 8, 2022
    SFaulken

    SFaulken Active Member 2021 Sponsor 2020 Sponsor

    Marysville, WA
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    Stand on the service brake with your foot, and *then* set the parking brake with the T-handle. That's generally been how I've handled it, and it's always worked, as long as the Parking Brake hardware and cabling was in serviceable condition.
     
  4. Jun 8, 2022
    timgr

    timgr We stand on the shoulders of giants. 2022 Sponsor 2021 Sponsor 2020 Sponsor

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    Does the Cadillac parking brake use the same puck as the service brakes? Has to be for the stomp-and-pull strategy to work.
     
  5. Jun 8, 2022
    SFaulken

    SFaulken Active Member 2021 Sponsor 2020 Sponsor

    Marysville, WA
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    This is true, I hadn't considered that.
     
  6. Jun 8, 2022
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member

    Tantallon, Nova...
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    As JW60 noted you need to ad an intermediate lever to increase mechanical advantage, that's how Jeep did it when they moved to drum parking brakes in the 70's, also earlier on 2wd DJ's that didn't have the drive shaft brake.

    [​IMG]
     
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  7. Jun 8, 2022
    Rozcoking23

    Rozcoking23 RUN & GET BIT!

    Stockton, CA
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    That was my thought also that I needed some sort of leverage.
    I hadn’t thought of this, I’ll try that tomorrow when I’m home.
    It does use the same puck.
    Thank you Howard
     
  8. Jun 12, 2022
    Rozcoking23

    Rozcoking23 RUN & GET BIT!

    Stockton, CA
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    Finally got time to play with JEEP today. Tried stepping on brakes while setting the parking brake, still was unable to get to set.
    Now I’m playing with a couple ideas on incorporating some sort of arm for leverage.
     
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  9. Jun 12, 2022
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
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    Your on the right track. I did one years ago and we put a pull lever between the seats for it. I've got another set to go on the '51 when I get time.
     
  10. Jun 13, 2022
    Buildflycrash

    Buildflycrash More or Less in Line. 2022 Sponsor 2020 Sponsor

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  11. Jun 13, 2022
    Bob

    Bob Member 2021 Sponsor

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    I did this same thing with the 11” drums I have on the rear. I’ve been happy with it.
     
  12. Jun 14, 2022
    Rozcoking23

    Rozcoking23 RUN & GET BIT!

    Stockton, CA
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  13. Jun 14, 2022
    PeteL

    PeteL If it wasn't for physics, and law enforcement... 2022 Sponsor 2021 Sponsor 2020 Sponsor

    Hills of NH
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    As discussed here in the past, the military M38A1 brake lever, between the seats, may be worth a look. I like it a lot better than the civilian "cane" handle. It may be the same part as the FC jeeps.
     
  14. Jun 14, 2022
    Norcal69

    Norcal69 Out of the box thinker 2022 Sponsor 2021 Sponsor 2020 Sponsor

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    I used a forklift park brake handle mounted between the seats for my drum brakes. It might not be enough leverage for your discs :shrug: $60 on Ebay

    [​IMG]

    [​IMG]
     
    Last edited: Jun 14, 2022
  15. Jun 15, 2022
    amboynut

    amboynut Member

    Chelatchie, WA
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    My M422A1 Mighty Mite came with that lever, mounted vertically though. Love it. My CJ6 will have one too.
     
  16. Jun 15, 2022
    Oldpappy

    Oldpappy A.C. Fults - Curmudgeon at large 2022 Sponsor 2021 Sponsor

    East Tennessee
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    Years ago we would use two floor levers to work the rear E-brakes independently, which comes in very handy when one wheel loses traction.
     
  17. Jun 15, 2022
    Howard Eisenhauer

    Howard Eisenhauer Super Moderator Staff Member

    Tantallon, Nova...
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    There's a joke here someplace but I'm just not up to it today :(

    upload_2022-6-15_12-26-25.png
     
  18. Jun 15, 2022
    Keys5a

    Keys5a Sponsor

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    This is an example of an Orschein brake lever. Its used for many industrial applications, as well as it came on late Willys Jeeps. I have a 1960 Wagon with one, as well as my ‘62 (or is it ‘64?) FC150, both original equipment.
    -Donny
     
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  19. Jun 15, 2022
    Oldpappy

    Oldpappy A.C. Fults - Curmudgeon at large 2022 Sponsor 2021 Sponsor

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    I think the ones I used came off of old VWs.
     
  20. Jun 16, 2022
    Rozcoking23

    Rozcoking23 RUN & GET BIT!

    Stockton, CA
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    I have been looking at the floor mounted levers. I don’t know if they will provide the leverage that I need. I am also looking at foot peddle style from a CJ7, I think that might provide the leverage I need. Sitting on a beach in Maui thinking on this with beverage in hand right now, will be a minute until I get back to it.
     
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