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Thread: Disc brake ????

  1. #1
    Join Date
    Dec 2009
    Location
    Western North Carolina
    Posts
    19

    Default Disc brake ????

    Anybody recognize these calipers previous owner said GM.What year make??

    My rig is a 72 wpowerbrake booster(dual style )
    I replaced the master cylinder with a 76 1 1/8 bore,
    The pedal is staying way low
    It does have the propotioning valve that matches the booster .
    I think the might be bad
    Any body use an adjustable p valve?

    Thanks
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  2. #2
    Join Date
    Feb 2009
    Location
    Aiken, SC
    Posts
    2,423

    Default

    I don't recognize them, but that's not a 72 axle, either. The front axle has been swapped out. If it's a D30, the axle is from a 73 or 74. If it is a D44, it is from a 74 or later. The earlier ones had closed knuckles and drum brakes, and discs were not available until 74.

    The master cylinder looks like one for front discs/rear drums. Whatever you have, it was "customized" at some point.
    Allan E.
    Curmudgeon Extraordinaire
    Charter Member, Old Hippie IH Club
    Old fashioned binder freak

  3. #3
    Join Date
    Dec 2009
    Location
    Western North Carolina
    Posts
    19

    Default

    I was told by previous owner the axle is a Dana 30
    I read somewhere that they had open or closed knuckles.
    I dont know if the cal mounting bracket is a stock newer unit or what.
    I know it has a dana 300 transfer case and a wide 4spd

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