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Leaky D18 - Heavier Oil - "Puddy"

Discussion in 'Early CJ5 and CJ6 Tech' started by 1969_CJ5, May 29, 2004.

  1. May 29, 2004

    1969_CJ5 Sponsor

    North Carolina
    Feb 14, 2004
    Ok... A novice with a novice question.

    I have heard of using "knuckle puddy" for the steering knuckles to help minimize leaks.

    What adverse affects would a thicker "puddy" have in a transfer case? With the more extreme temperatures what kind of issues would arise with a oil/grease mixture?

    Am I correct in thinking this would help with the notorious D18 leaks?

    Am I talking out my .... [​IMG] ;)
  2. May 29, 2004

    DanStew Preowned Merkin salesman Staff Member

    Lexington, South...
    Sep 22, 2002
    The puddin would not be good for the 18. it rotates at a much higer speed and you more parts to protect, i owuld just pull the Tcase and install new rear seals. There is a double lipped seal available for it, but i forgot the seal nubmer. i think Lynn had the number or somebody else did. Just make sure when you install the new seals that you lube the rubber surface of the seal so that it doesnt burn out, which is why alot of seals fail. The puddin is good for the knuckles but woulnd probably ruin your Tcase.
  3. May 29, 2004
    James P. Enderwies

    James P. Enderwies Sponsor

    Lake Havasu City, AZ
    Feb 2, 2003
    Here's the double lipped seal #: National Seal # 473229.
  4. May 30, 2004

    w3srl All-around swell dude Staff Member

    Port Orange, FL
    Nov 6, 2002
    What, not peanut butter cracks? R)

  5. Jun 2, 2004

    Jeepnut67 New Member

    Mammoth, AZ
    Aug 25, 2003
    I chased leaks on my D18 for years and finally got serious with it... 2 problem areas I had were the bolt holes for the bottom pan, I put ultra copper on the bolts, and the stack of shims on the rear output... I put a very thin film of ultra copper on each side of the shims before checking the backlash on the bearings it adjusts. No leaky in 5 years so far....
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