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t-case gearing

Discussion in 'Early CJ5 and CJ6 Tech' started by jeepcj, Apr 12, 2011.

  1. Apr 13, 2011
    jeepcj

    jeepcj Member

    cincy, Ohio
    Joined:
    Aug 23, 2009
    Messages:
    601
    No, not sure what year the case is, but I will look into it and check out the tara site.
    thanks. just wanting to know out of couriousity.
     
  2. Apr 13, 2011
    oldtime

    oldtime oldtime

    St. Charles,...
    Joined:
    Aug 14, 2006
    Messages:
    3,503
    4.88 final drive ratio is 39 ring / 8 pinion in the front axle
    4.89 final drive ratio is 44 ring / 9 pinion in the rear axle
    5.38 final drive ratio is 43 ring / 8 pinion in both front and rear axles
     
  3. Apr 13, 2011
    jeepcj

    jeepcj Member

    cincy, Ohio
    Joined:
    Aug 23, 2009
    Messages:
    601
    would the number of teeth on the gears be dif between the dana 44 and the dana 27. If I remember they were slightly dif. seeing the above list of ratios, the 4.89 caught my eye. from memory, it seems like the front was 4.89 and the rear was 4.88.
    Are they subposed to be that way?
     
  4. Apr 13, 2011
    jpflat2a

    jpflat2a what's that noise?

    Hermosa, SD
    Joined:
    Jul 30, 2003
    Messages:
    8,525
    yes
     
  5. Apr 14, 2011
    oldtime

    oldtime oldtime

    St. Charles,...
    Joined:
    Aug 14, 2006
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    3,503
    For Dauntless powered CJ with stock optional ratio the front is 4.88 ratio 39/8 and rear is 4.89 ratio 44/9.

    4.88 39/8 D-44's rear gears were available for SW and PU before 1960.

    No 4.89 ratio fronts.
     
    Last edited: Apr 15, 2011
  6. Apr 15, 2011
    jeepcj

    jeepcj Member

    cincy, Ohio
    Joined:
    Aug 23, 2009
    Messages:
    601
    possible it was the other way around. its been over a year since I was in there.
     
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