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Help with brake lines and fron cylinders

Discussion in 'Early CJ5 and CJ6 Tech' started by aekdbbop, Sep 3, 2014.

  1. aekdbbop

    aekdbbop Member

    Jeep is a Frankenjeep. CJ5 134 engine, m38a1 body and frame. Have no idea about the axles/brakes.
    The front brakes are 9", PO upgraded the backs to 11" with FLEX hose to the cylinders.

    1.I need new lines for the entire vehicle.
    2. I need new wheel cylinders for the front.


    1.Here is the front passenger side. Notice steel S tube to cylinder.
    [​IMG]
    [​IMG]
    [​IMG]
    [​IMG]

    2. Here is the front drivers side. Notice flex tube to cylinder.
    [​IMG]
    [​IMG]

    3. Here is the wheel cylinders I have for the back brakes.
    [​IMG]

    Any help finding or piecing together the entire brake line system, spring hardware for the front, and wheel cylinders for the front would be very helpful.

    Thank you!
     
    aekdbbop, Sep 3, 2014
    #1
  2. PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    As per the fronts, the "passenger side" s-tube with rock shield and straight port is correct M38A1 style.

    The angled port "driver's side" cylinder was one of the options for civilian jeeps.

    Military parts are available. Try ebay or one of the surplus M-Jeep suppliers on line.
     
    PeteL, Sep 3, 2014
    #2
  3. Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    As Pete said both are actually "correct", for a given value of 'correct". Up to '58 or so CJ5 brake lines were identical to the M38a1, following that they changed a little bit, i.e. the front line moved up to the frame crossmember as opposed to running on the axle. There were other minor changes through the years.

    Early-

    [​IMG]

    Not Quite So Early-

    [​IMG]

    Some have both front & rear feeds coming from a single dual port banjo fitting on the m/c, some have a single line & a tee.

    Brake line kits & wheel cylinders are available from suppliers such as Walcks, I just went to the local FLAPs & bought the wheel cylinders & premade lines of more or less the right length.

    I would suggest now would be a good time to convert the fronts to 11", a dual m/c upgrade would be a good idea as well.

    H.
     
    Last edited: Sep 8, 2014
    Howard Eisenhauer, Sep 3, 2014
    #3
  4. Warloch

    Warloch Did you say Flattie??? Staff Member

    11" in the back and 9" in the front is not a good idea and would be the first thing I 'fixed'. Your lines will sort out fine from there.
     
    Warloch, Sep 3, 2014
    #4
  5. Old Time Jeeper

    Old Time Jeeper New Member

    PM Sent
     
    Old Time Jeeper, Sep 3, 2014
    #5
  6. PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    PeteL, Sep 3, 2014
    #6
  7. aekdbbop

    aekdbbop Member

    Ok, so I got some 11" backing plates coming my way for the front axle.

    Also adding the Herms Dual MC upgrade.

    With that in mind.. should I then be looking for a preformed brake line for a 73?
     
    aekdbbop, Sep 8, 2014
    #7
  8. PeteL

    PeteL If it wasn't for physics, and law enforcement... 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Not too difficult to make your own custom lines from a roll of tube and some assorted fittings. Just need a double-flare tool, maybe a cheap bender.

    I find it very convenient to have that capability on hand, I can make any exact length, and saves a lot of driving to parts stores.
     
    PeteL, Sep 8, 2014
    #8
  9. NorcoJeep

    NorcoJeep New Member

    I just replaced the front wheel cylinders on my 62 cj5 - Napa assured me they had fronts and rears...they only had the rears. I ultimately went to partsgeek.com and got a front right and front left for $17 a piece. I used the 15" brake hose that autozone sells - listed as a "rear" hose - for all 4 corners and it worked well. I have the civilian setup in the front however, I think you'll need shorter hose up there.

    I am also looking into the dual MC upgrade as well. I'll have to look into the Herms option..
     
    NorcoJeep, Sep 10, 2014
    #9