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t98 to large bore dana 18

Discussion in 'Early CJ5 and CJ6 Tech' started by cjsammyowner, Mar 21, 2012.

  1. Mar 21, 2012
    cjsammyowner

    cjsammyowner Member

    Paxtonia, Pa
    Joined:
    Jan 4, 2009
    Messages:
    117
    Would a t18 to dana 20 adapter work for adapting a t98a to a large bore dana 18? Or is the rear of the 2 transmissions different?
     
  2. Mar 21, 2012
    shmober

    shmober Member

    eureka ca.
    Joined:
    May 10, 2011
    Messages:
    64
    I think it will work as long as the 18 is a large hole
     
  3. Mar 21, 2012
    cjsammyowner

    cjsammyowner Member

    Paxtonia, Pa
    Joined:
    Jan 4, 2009
    Messages:
    117
    I thought the bearings were different? That's why I am thinking it would not work?
     
  4. Mar 21, 2012
    oldtime

    oldtime oldtime

    St. Charles,...
    Joined:
    Aug 14, 2006
    Messages:
    3,466
    There is no difference between the back side of the T98 and the back side of the T18.

    The only thing different about CJ with T98 and CJ with T18 is the TC adapter.
    T98 CJ's were always mated to a small hole D18 @ 3-5/32" index.
    T18 CJ's were always mated to a large hole D18 or D20 @ 4" index.

    Basically they use two distinct yet nearly identicle adapters.
    The 3-3/32" adapter says "T98" on it.
    The early mfg. 4" index adapters also say "T98".
    I think the later 4" adapters say "T18" ???
     
  5. Mar 22, 2012
    Warloch

    Warloch Did you say Flattie??? Staff Member

    Falcon, CO
    Joined:
    Mar 4, 2003
    Messages:
    5,466
    If you need to, you can get the adaptor milled to fit a small hole D18 - did that with a setup for the kids.
     
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