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Thread: New rear disk brakes

  1. #1
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    New rear disk brakes

    I am going to be installing rear disk brakes on my xj and was wondering if I need to upgrade my brake booster, master cylinder or proportioning valve. or if there is additional equipment I need to purchase. Thanks, Steve

  2. #2
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    What year XJ?
    When I did this swap on my '99 with ZJ parts, only other thing I changed was to use the poportioning valve from the ZJ.. One of the best upgrades I ever did on my old XJ.
    2005 WK, Hemi, QD-II way too stock so far (aka 'blank slate')

  3. #3
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    its a 96 xj and I'm putting 11" explorer disks on.

  4. #4
    XJ on 36s andrew2516's Avatar
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    Are you also swapping in an 8.8?
    00 Cherokee Sport

    __________
    /__l_l_,\____\,___
    l_---l_l__l---[ ]llllll[ ]

    _.(o)_)__(o)_)--o-)_)

  5. #5
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    You can change the proportioning valve or take your proportioning valve apart and take the o-ring out. Thats what I did on mine. Didn't have the valve from the donor. Has worked well for the last year.
    97 Jeep TJ 4in. lift 35" MT, winch, 8.8
    2000 Dodge Cummins, Auto to 5 speed swap complete.

  6. #6
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    Yep, Andrew and I have both done it (as have others).. Although I used ZJ parts.
    Any questions, feel free to ask
    2005 WK, Hemi, QD-II way too stock so far (aka 'blank slate')

  7. #7
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    they are on a ford 9" axle

  8. #8
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    bump

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