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Dana 30 inner axle seal

Discussion in 'Intermediate CJ-5/6/7/8' started by garage gnome, Jan 21, 2015.

  1. Jan 21, 2015
    garage gnome

    garage gnome ECJ5 welder

    Western MA
    Joined:
    Jun 19, 2009
    Messages:
    3,092
    One of my inner seals on my Dana 30 is leaking pretty bad. I was wondering how you replace these things? Do I have to remove the carrier and pound it out from the outside and then install the new one from the inside of the case?
     
    garage gnome, Jan 21, 2015
    #1
  2. Jan 21, 2015
    Im a doughball

    Im a doughball Member

    Oregon City
    Joined:
    Jan 8, 2011
    Messages:
    207
    Yep.
     
    Im a doughball, Jan 21, 2015
    #2
  3. Jan 21, 2015
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
    Joined:
    Sep 23, 2002
    Messages:
    12,529
    The axle shafts and differential CASE need removed. Then the axle seals can be removed as you describe. Then they must be pressed from the inside out. Good time to thoroughly clean rust and debris from the tubes. The difficult part is pressing the seals into the tubes without damaging them. There are special tools for this but some 1/2" all-thread, a couple nuts, and thick washers the right outside diameter can work.
     
    nickmil, Jan 21, 2015
    #3
  4. Jan 22, 2015
    OleBlue

    OleBlue Sponsor

    Tennessee
    Joined:
    Feb 14, 2010
    Messages:
    1,001
    A big socket like a 36mm to set in the recess perfectly of the seal and driven in from the opposite side with long extensions worked well on my TJ. The key is starting them straight. YouTube shows this.
     
    OleBlue, Jan 22, 2015
    #4
  5. Jan 22, 2015
    47v6

    47v6 junk wrecker! 2023 Sponsor 2022 Sponsor

    USA
    Joined:
    Oct 25, 2006
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    5,799
    Thats exactly what I did.
     
    47v6, Jan 22, 2015
    #5
  6. Jan 25, 2015
    jeepdaddy2000

    jeepdaddy2000 Active Member

    Eagle Point oregon
    Joined:
    Jun 24, 2004
    Messages:
    1,141
    Remember to mark your bearing caps and reinstall them exactly the way they came off.
    You can usually leverage the seals out from the inside using the pointed end of a pry bar. This will help keep you from sweeping a bunch of crud into the housing.
    Insure you clean the seal area thoroughly.
    Touch up the axle seal surface with some light emery paper.
    Of course, be sure you do both sides.
     
    jeepdaddy2000, Jan 25, 2015
    #6
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