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cross front discs from a90 yj dana 30 to my 74 dana 30 anyhng i need to know

Discussion in 'Intermediate CJ-5/6/7/8' started by linkwhy, Jul 28, 2015.

  1. Jul 28, 2015
    linkwhy

    linkwhy Member

    Joined:
    Jun 7, 2007
    Messages:
    67
    I'll have to change o Revamp or change anything thans
     
    linkwhy, Jul 28, 2015
    #1
  2. Jul 28, 2015
    mb82

    mb82 I feel great!

    Charlottesville Va
    Joined:
    Mar 17, 2003
    Messages:
    2,706
    They won't work. The disk brakes for a YJ have a lug pattern of 5 on 4.5in a CJ is 5 on 5.5inch. I don't know about the calipers or brackets off the top of my head.
     
    mb82, Jul 28, 2015
    #2
  3. Jul 28, 2015
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
    Joined:
    Sep 23, 2002
    Messages:
    12,529
    Nothing will bolt on and would take tremendous re-engineering to make those parts work plus tons of fab work. Better off building from scratch.
     
    nickmil, Jul 28, 2015
    #3
  4. Jul 28, 2015
    RATTYFLATTY

    RATTYFLATTY I think you need a little more throttle

    Central MN
    Joined:
    Oct 23, 2007
    Messages:
    518
    You need to look for a 76-86 CJ with discs. This will make your swap the easiest.
     
    RATTYFLATTY, Jul 28, 2015
    #4
  5. Jul 28, 2015
    Long&Low

    Long&Low Active Member

    Geauga County, OH
    Joined:
    Dec 13, 2009
    Messages:
    1,212
    YJ or TJ Dana 30 stuff is not very interchangeable with the CJ Dana 30 stuff. The axles "c"'s are different, plus the later Dana 30 uses unit bearing hubs , and the CJ versions do not, lots of differences.


    As stated above your gonna need to look for CJ7 disc brake stuff.
     
    Long&Low, Jul 28, 2015
    #5
  6. Jul 30, 2015
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
    Joined:
    Sep 23, 2002
    Messages:
    12,529
    Just to clarify my earlier post I meant building from scratch vs. trying to use the YJ/XJ stuff. The disc Dana 30 CJ stuff would be the path of least resistance. The other option would be using GM/fullsize Jeep calipers and mounts and building from there. LOTS of posts on this over the years.
     
    nickmil, Jul 30, 2015
    #6
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