Thread: Leaky pinion

  1. #1
    Join Date
    Dec 1999
    Location
    Virginia Beach VA
    Posts
    8,181

    Leaky pinion

    I had originally thought my diff cover was leaking however now it appears it's the pinion. It going to try replacing the seal myself this weekend.

    I'm open to any tips you all have. From the videos I've watched, you just pull the driveshaft, replace the seal, then put things back together the same way (number of threads showing) as you took them off.

    Leaky pinion-img_20211124_171555753.jpeg

    Leaky pinion-img_20211124_171552777.jpeg

    Sent from my moto g stylus using Jeepz.com mobile app
    Last edited by TerryMason; 11-26-2021 at 11:49 AM.
    My 2005 Wrangler Build Thread

    He who is without oil shall throw the first rod. -Compressions 8.7:1

  2. #2

    Re: Leaky pinion

    Quote Originally Posted by TerryMason View Post
    I had originally thought my diff cover was leaking however now it appears it's the pinion. It going to try replacing the seal myself this weekend.

    I'm open to any tips you all have. From the videos I've watched, you just pull the driveshaft, replace the seal, then put things back together the same way (number of threads showing) as you took them off.

    Leaky pinion-img_20211124_171555753.jpeg

    Leaky pinion-img_20211124_171552777.jpeg

    Sent from my moto g stylus using Jeepz.com mobile app
    That would be correct from what Ive seen too.
    Be sure to mark shaft and yoke so they go back together the same way.



    Sent from my iPhone using Jeepz.com mobile app

  3. #3
    Join Date
    Dec 2010
    Location
    California
    Posts
    518

    Re: Leaky pinion

    If it is not making a mess of the driveway or undercarriage, consider just topping off the differential and leaving it as is. If the seep becomes a drip, that is the time to fix it.

  4. #4
    Join Date
    Feb 2009
    Location
    Dayton Ohio Area
    Posts
    6,298

    Re: Leaky pinion

    Pinion seal replacement Jeep Wrangler: Short cut method - YouTube


    Never look down on anyone unless you are helping them up - Jesse Jackson
    "Never look down on anybody unless you're helping him up" - Jesse Jackson

  5. #5
    Join Date
    Dec 1999
    Location
    Virginia Beach VA
    Posts
    8,181

    Re: Leaky pinion

    It took some work but I was able to do it. Cost about $8 for the seal and another eight for the gear lube.

    The hardest part by far was getting the yolk separated from the shaft. After banging on it fairly gently with a hammer I ended up using half of a coil spring compressor. It came off easily once I had done that.

    All in all I'm very happy with it.

    Leaky pinion-img_20211127_144020380.jpeg

    Leaky pinion-img_20211127_150129792.jpeg

    Leaky pinion-img_20211128_084207745.jpeg

    Sent from my moto g stylus using Jeepz.com mobile app
    Last edited by TerryMason; 11-29-2021 at 06:36 PM.
    My 2005 Wrangler Build Thread

    He who is without oil shall throw the first rod. -Compressions 8.7:1

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