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complete disk brake conversion kits

Discussion in 'Early CJ5 and CJ6 Tech' started by ktm25089, Apr 12, 2009.

  1. Apr 12, 2009
    ktm25089

    ktm25089 Member

    Joined:
    Oct 18, 2006
    Messages:
    240
    Hello,
    please can you tell me where can i found complete disk brake conversion kits for the front of M38a1?
    Can i use one chamber MC or i have to convert it to DUAL MC?
    can i keep my stock 16" steel rims?

    Thank you
    I,ve made a search but i confused more

    George
     
    ktm25089, Apr 12, 2009
    #1
  2. Apr 12, 2009
    jeep peep69

    jeep peep69 Member

    redding ca.
    Joined:
    Dec 8, 2007
    Messages:
    622
    r&p or herm the overdrive guy both have complete conversion kits. yes you do need a dualmaster cylinder. some stock wheels will fit you will just have to test fit
     
    jeep peep69, Apr 12, 2009
    #2
  3. Apr 12, 2009
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
    Joined:
    Sep 23, 2002
    Messages:
    12,529
    You can convert to discs without converting to a dual reservoir master cylinder and it can work fine. I've done it with good success. I would suggest switching though for safety purposes....
     
    nickmil, Apr 12, 2009
    #3
  4. Apr 12, 2009
    w3srl

    w3srl All-around swell dude Staff Member

    Port Orange, FL
    Joined:
    Nov 6, 2002
    Messages:
    4,275
    If you are running the OEM 16" tube-type rims, they will not clear the GM calipers. You can keep the stock-look with 15" rims from a '76 or later CJ, or possibly the OEM rims from a late-'70s Ford F150 with 4WD.

    I can also tell you that the 15x8 painted K-H rims most definitely will not work. :mad:

    Another option, but a somewhat pricey one would be to go with a custom-made rim from Stockton Wheel, or some of the other custom shops.
     
    w3srl, Apr 12, 2009
    #4
  5. Apr 12, 2009
    57cj5

    57cj5 Member

    North Carolina
    Joined:
    Aug 31, 2005
    Messages:
    593
    I bought both the 11 inch rear drum and front disc conversion from Herm. I also did his dual reservoir master cylinder conversion. He did mention the MC for front disc was diferent from the non disc one. Something about a plunger inside. I have older Western Wheels 15x10 which fit fine over the disc and drums. I believe the disc are 12 in or so. I can post a pic if needed....
    Paul
     
    57cj5, Apr 12, 2009
    #5
  6. Apr 12, 2009
    w3srl

    w3srl All-around swell dude Staff Member

    Port Orange, FL
    Joined:
    Nov 6, 2002
    Messages:
    4,275
    The clearance issue is not with the diamter of the rotor, it is with the dimensions of the caliper and how it is positioned in relation to the centerline of the hub face. Even with the "disc brake" rims, the clearance with the GM calipers is still very close. Close enough in fact that I cleaned up the castings of my calipers a bit just for a bit of insurance.

    Here's what to look for when you are shopping for rims to fit the disc conversion:

    This:

    [​IMG]

    Not this:

    [​IMG]
     
    w3srl, Apr 12, 2009
    #6
  7. Apr 12, 2009
    57cj5

    57cj5 Member

    North Carolina
    Joined:
    Aug 31, 2005
    Messages:
    593
    Yes. I agree. Even with the GM calipers and my wheels, there is not an issue with fitment. I was unsure until I actually mounted them.
     
    57cj5, Apr 12, 2009
    #7
  8. Apr 15, 2009
    ktm25089

    ktm25089 Member

    Joined:
    Oct 18, 2006
    Messages:
    240
    Thank you very much.I will have to found some rims first that will fit.Here in Greece we dont have a lot of parts to choose from US made vehicles

    George
     
    ktm25089, Apr 15, 2009
    #8
  9. May 29, 2009
    davet

    davet Member

    Andover, MN
    Joined:
    Jul 30, 2003
    Messages:
    164
    Check my reply to thread "Rear Dana 44 upgrade". I put 4 whl discs on my stock 56 stock axles. I used stock single master cylinder but had to remove a restrictor screen inside of it otherwise the brakes would drag.
     
    davet, May 29, 2009
    #9
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