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Difference between t-case

Discussion in 'Early CJ5 and CJ6 Tech' started by navy67, Oct 8, 2006.

  1. Oct 8, 2006
    navy67

    navy67 It's a Jeep thing!

    San Diego
    Joined:
    Aug 1, 2005
    Messages:
    87
    I know I have a DANA t-case but which one, I just replaced the gastket , but that works on both d18 and d20? So whats the physical difference? Also is there somewhere on the case thats stamped D-18 or D-20?

    :v6: :flag:
    -J
     
    navy67, Oct 8, 2006
    #1
  2. Oct 8, 2006
    neptco19

    neptco19 That guy....

    Athens, GA
    Joined:
    Sep 26, 2003
    Messages:
    1,381
    If the rear output is offset to the passenger side its a 18. IF its centered its a 20.
     
    neptco19, Oct 8, 2006
    #2
  3. Oct 8, 2006
    Mcruff

    Mcruff Earlycj5 Machinist

    Albertville, AL
    Joined:
    Sep 22, 2002
    Messages:
    5,349
    A dana 18 case has the rear output offset to the passenger side just like the front ouput, the dana 20 rear output is centered behind the transmission to transfercase input. As far as the case itself the dana 18 and dana 20 cases are identical and interchangeable so long as the dana 18 has the large 1 1/4" intermediate shaft which can be seen from the outside of the case.
     
    Mcruff, Oct 8, 2006
    #3
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