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11" Brakes

Discussion in 'Early CJ5 and CJ6 Tech' started by akrazgpr, Jul 26, 2006.

  1. Jul 26, 2006
    akrazgpr

    akrazgpr New Member

    Clemmons NC
    Joined:
    Feb 16, 2006
    Messages:
    33
    Hi. I just scored these today off a 74 . I havn't opened them up yet but the tag on the diffs indicate 3.73's . Should I swap these into the Jeep I'm building (replacing the offset dana 44 and dana 25/27) or just swap the brakes ? Will a dana 20 case bolt up to my t 90. Sorry for the bad pic it's very humid here and the lens on the camera kept fogging up.
    [​IMG]
    Thanks AJ
     
    akrazgpr, Jul 26, 2006
    #1
  2. Jul 26, 2006
    neptco19

    neptco19 That guy....

    Athens, GA
    Joined:
    Sep 26, 2003
    Messages:
    1,381
    AJ the dana 20 will bolt up, but as for the bullgear matching up someone else will have to help with that (not sure on the spline count of the output shafts). It might be much easier to just rob the 11" brakes off those axles and swap them onto your 67.
     
    neptco19, Jul 26, 2006
    #2
  3. Jul 26, 2006
    DanStew

    DanStew Preowned Merkin salesman Staff Member

    Lexington, South...
    Joined:
    Sep 22, 2002
    Messages:
    4,585
    as long as you have a 6 spline bullgear tha matches to the dana 20 then you should be good to go.
     
    DanStew, Jul 26, 2006
    #3
  4. Jul 27, 2006
    Posimoto

    Posimoto Hopeless JEEP Addict

    Minden, Nevada
    Joined:
    Aug 7, 2003
    Messages:
    4,538
    3.73's kinda suck in an ECJ. Swap the brakes.
     
    Posimoto, Jul 27, 2006
    #4
  5. Jul 27, 2006
    RedWing

    RedWing Member

    Sutton Bay
    Joined:
    Oct 30, 2005
    Messages:
    564
    I have a 1971 cj5 and one of the previous owners did a similar swap with the rear axle and the transfer case. They installed a center differential and a dana/spicer model 20 transfer case. The front axle is the original model 27.

    This combination seam to work well, but the drive shaft angle is steep and actuall angles up and toward the drivers side.

    I'm giving some thought to swapping the front axle with a d30. My current gearing is 3.73.
     
    RedWing, Jul 27, 2006
    #5
  6. Jul 27, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    Kinda? R)

    You loose/loose with that proposition. 3.73 and a higher low range in the transfer case. 3.73 w/ the D18 is tolerable for most of what I do but still to fast for alot that I'd like to do.
     
    sparky, Jul 27, 2006
    #6
  7. Jul 27, 2006
    lynn

    lynn Time machine / Early CJ5 HR Rep Staff Member

    Huntingdon PA
    Joined:
    Sep 20, 2002
    Messages:
    3,437
    Sparky, that's why you need the T18 :twisted:

    It makes the D18/3.73s tolerable offroad :D
     
    lynn, Jul 27, 2006
    #7
  8. Jul 27, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    It's on the list, that or a SM420.

    I also know someone now who has an "extra" t18. ;)
     
    sparky, Jul 27, 2006
    #8
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