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Dana 18 gear ratios and oil weight?

Discussion in 'Early CJ5 and CJ6 Tech' started by Skullhead, May 30, 2006.

  1. May 30, 2006
    Skullhead

    Skullhead Member

    Delaware
    Joined:
    Mar 23, 2006
    Messages:
    53
    I am changing the fluid in my T14 tranny and Dana 18 tcase and was wondering what weight they take. Also could someone tell me the low/high ratios in the 18 and if anyone knows what the T14 gears are. thanks
     
    Skullhead, May 30, 2006
    #1
  2. May 30, 2006
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
    Joined:
    Sep 23, 2002
    Messages:
    12,529
    The 18 transfer case has a 1:1 high range ratio and 2.46:1 low range ratio. Don't remember on the T-14, hopefully someone will chime in. I like plain old 85-90 in mine but our weather in the Pacific Northwest is pretty mild compared to other parts of the country. FSM shows 80w for winter and 90w for summer, GL-4. GL-5 will work great. Nickmil
     
    nickmil, May 30, 2006
    #2
  3. May 30, 2006
    sparky

    sparky Sandgroper Staff Member Founder

    Perth, WA
    Joined:
    Sep 20, 2002
    Messages:
    9,221
    sparky, May 30, 2006
    #3
  4. May 30, 2006
    wjCJ5

    wjCJ5 New Member

    Joined:
    May 19, 2006
    Messages:
    16
    Go to Novak-adapt they know all that good stuff.
     
    wjCJ5, May 30, 2006
    #4
  5. May 30, 2006
    Mcruff

    Mcruff Earlycj5 Machinist

    Albertville, AL
    Joined:
    Sep 22, 2002
    Messages:
    5,349
    The t14 has a 3.1-1st and a 2.61 2nd gear.
     
    Mcruff, May 30, 2006
    #5
  6. May 31, 2006
    Skullhead

    Skullhead Member

    Delaware
    Joined:
    Mar 23, 2006
    Messages:
    53
    Ok, thanks guys.
     
    Skullhead, May 31, 2006
    #6
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