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How hard is it to change a seal on a differential?

Discussion in 'Early CJ5 and CJ6 Tech' started by StraightToPlaid, Mar 10, 2007.

  1. Mar 10, 2007
    StraightToPlaid

    StraightToPlaid Ludicrous speed!!!!

    West Chester, OH
    Joined:
    Nov 21, 2006
    Messages:
    338
    My front axle is leaking gear oil apparently, it looks like its coming out of the seal where it connects to the drive shaft. How hard is it to replace? After a long day of working one electrical stuff today I really don't feel like spending hours doing something that I might screw up (long story, bad luck with some aging wire today).

    How tough is it to replace the seal or should I just take it in to get replaced?
     
    StraightToPlaid, Mar 10, 2007
    #1
  2. Mar 10, 2007
    DanStew

    DanStew Preowned Merkin salesman Staff Member

    Lexington, South...
    Joined:
    Sep 22, 2002
    Messages:
    4,585
    it isnt that hard, you have to pull the yoke off and get a seal puller and pop out the seal. The nget some emery cloth and clean up the seal surface on the yoke, because it is probably cruddy. Clean the pinion shaft. Install the yoke, but have some RTV on the splines so the oil doesnt come out the splines. Then tighten it down. Tighten the yoke is also a hard thing because the yoke torque setting is really high. But i just torqued it down as much as i can with a breaker bar (lock the front hubs when you do this) and make sure there is not any play in the yoke.
     
    DanStew, Mar 10, 2007
    #2
  3. Mar 10, 2007
    StraightToPlaid

    StraightToPlaid Ludicrous speed!!!!

    West Chester, OH
    Joined:
    Nov 21, 2006
    Messages:
    338
    Hmm... what special tools do I need? Seal puller and what else?
     
    StraightToPlaid, Mar 10, 2007
    #3
  4. Mar 10, 2007
    Ducks-Bass-n-Jeeps

    Ducks-Bass-n-Jeeps A Parade of One

    Brentwood, Tennessee
    Joined:
    Aug 11, 2003
    Messages:
    120
    Rubber Mallet or Hammer
     
    Ducks-Bass-n-Jeeps, Mar 10, 2007
    #4
  5. Mar 10, 2007
    jeep2003

    jeep2003 Well-Known Member

    Upstate NY
    Joined:
    May 30, 2006
    Messages:
    1,934
    you can get away without a seal puller. they hack out pretty easy
     
    jeep2003, Mar 10, 2007
    #5
  6. Mar 10, 2007
    Ducks-Bass-n-Jeeps

    Ducks-Bass-n-Jeeps A Parade of One

    Brentwood, Tennessee
    Joined:
    Aug 11, 2003
    Messages:
    120
    True, but never pass up an opportunity to buy a tool!:twisted:
     
    Ducks-Bass-n-Jeeps, Mar 10, 2007
    #6
  7. Mar 10, 2007
    Old Bill

    Old Bill Aggressively passive....

    Really Southern...
    Joined:
    Nov 12, 2004
    Messages:
    822
    Impact wrench is a BIG help with getting the nut off. I couldn't get mine off with the breaker, 4' of pipe and me (250lbs of me) standing on the end.
     
    Old Bill, Mar 10, 2007
    #7
  8. Mar 10, 2007
    kaiser_willys

    kaiser_willys Well-Known Member

    Joined:
    Jan 7, 2007
    Messages:
    1,524
    a pice of pipe or a socket that fits the steel surface long enough to get you past the pinion shaft will ease the install,<carefull not to damage the seal though>
     
    kaiser_willys, Mar 10, 2007
    #8
  9. Mar 10, 2007
    CJ-X

    CJ-X Member

    Ohio
    Joined:
    Aug 6, 2006
    Messages:
    816
    X2
     
    CJ-X, Mar 10, 2007
    #9
  10. Mar 11, 2007
    willysnut

    willysnut Banned

    Newnan, Ga.
    Joined:
    Oct 8, 2003
    Messages:
    654
    Use a plumbers pipe wrench to hold yoke from turning by putting wrench on yoke and letting it hit the ground or frame to keep yoke from turning while you loosen the nut. My yoke was rusted to the pinion shaft and required a puller and lots of effoert to get off. Ended up tweaking the yoke and had to get another. Use a cheater pipe on a 1/2" drive breaker bar for the nut then reinstall nut as tight as the old one came off. Seal comes out using a big screwdriver tip and prying it out. Don't bend up the new seal hammer it back in.:hurrican: :beer:
     
    willysnut, Mar 11, 2007
    #10
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