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1962 CJ Wheel cylinders?

Discussion in 'Early CJ5 and CJ6 Tech' started by deputyvaughn, Feb 7, 2012.

  1. Feb 7, 2012
    deputyvaughn

    deputyvaughn Member

    North Alabama
    Joined:
    Feb 5, 2012
    Messages:
    99
    Sorry to jump to a question on my first post, I have a 1962 CJ that has been cross bred to a m151 drive train. More on that as time goes on. Anyway, I have managed to get the wheel cylinders replaced on the rear, but can't even find an accurate part number for the front. Can anybody give me an OEM or Napa or even a correct Autozone part number for the front wheel cylinders?
    I promise to tell more about my poor little "bionic jeep" in future post.

    Scott
     
    Last edited: Feb 8, 2012
  2. Feb 8, 2012
    jasonjp62

    jasonjp62 Member

    Pennsboro WV.
    Joined:
    Aug 15, 2009
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    799
    Personally I would do a 11" conversion vs spending the time looking for the 9" wheel cylinders. Mine stops so much better and it was an easy upgrade.
     
  3. Feb 8, 2012
    unclebill

    unclebill Banned

    a sun blasted...
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    Feb 17, 2009
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    2,358
    scott
    do a search here for the slugs brakes.
    i rebuilt mine a couple years ago
     
  4. Feb 8, 2012
    deputyvaughn

    deputyvaughn Member

    North Alabama
    Joined:
    Feb 5, 2012
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    99
    I haven't considered the 11 inch upgrade, but will have to think about it. I know it would require finding all the backing plates and stuff. My biggest weakness is money so I'm trying to work with what I have. However my jeep is already cross bred so I don't mind experimenting some too. I already took out the original master cylinder and upgraded to a power brake booster and master from a, believe it or not, Nissan Sentra booster and master. Had to move the heater box and install swing pedals. I also put in a clutch master and mounted a slave cylinder on the frame rail to actuate the original z-bar for the clutch arm.
    I'm working on getting a parts jeep I have found locally that will have all of the factory original equipment, but I don't know how much I want to go back yet.
    I still would like to know the part number if anyone knows it.
    Thanks for the replies.

    Scott
     
  5. Feb 8, 2012
    oldtime

    oldtime oldtime

    St. Charles,...
    Joined:
    Aug 14, 2006
    Messages:
    3,488
    The M151 is a Ford or AM General product and the 1962 CJ is a Willys Motors product.
    So this Jeep is evidently a TRANS MAKE build.

    It is impossible to designate the correct wheel cylinder number without identification.
    We don't know if its a 1962 CJ front axle or something else.
    Currently running 9" brakes or ?
    Do the front wheel cylinders attach to an "S" tube or to a hose ?
    Are the front cylinders identicle or RH/LH ?
     
  6. Feb 8, 2012
    deputyvaughn

    deputyvaughn Member

    North Alabama
    Joined:
    Feb 5, 2012
    Messages:
    99
    the front differential is the original CJ part, Dana 27 I believe. 9 inch drum brakes, they will have left and right wheel cylinders. I have found the correct replacements for the rear, but can't even get the right number for the front. I can get "creative" if need be but would rather not. The M151 crossover was done by welding the respective parts of the drive shafts together to make it work, CJ at the differential and M151 at the transfer case output. When I bought it, it was still set up with a split 24-12 electrical system, 24 for the engine and 12 for the body. I did some trading with the parts and now have a 12 volt system all the way. Too many potential problems running a split system.
    Anyway, just looking for a part number on those wheel cylinders.

    Scott
     
  7. Feb 8, 2012
    oldtime

    oldtime oldtime

    St. Charles,...
    Joined:
    Aug 14, 2006
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    3,488
    A 1962 CJ front axle should be a model 25 with 5.38 final drive.
    The front wheel cylinders should be # 803639 Left and # 803640 Right
    Rear should be # 807357 (qty2)
     
  8. Feb 9, 2012
    deputyvaughn

    deputyvaughn Member

    North Alabama
    Joined:
    Feb 5, 2012
    Messages:
    99
    Thanks oldtime. Is it Dana 25 front and 27 rear? I may have mixed them up.

    Scott
     
  9. Feb 9, 2012
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    12,529
    The rear should be a 44. The front would be Dana 25 or 27.
     
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