1. Registration trouble? Please use the "Contact Us" link at the bottom right corner of the page and your issue will be resolved.
    Dismiss Notice

Differential pin is stripped

Discussion in 'Early CJ5 and CJ6 Tech' started by H2Ohs, Jan 4, 2015.

  1. Jan 4, 2015
    H2Ohs

    H2Ohs New Member

    MA
    Joined:
    May 11, 2014
    Messages:
    35
    Hi All,
    Trying to replace the axle seals and have it mostly apart. I found that the little screw that holds the big pin within the spider gears is stripped. It actually looks like someone attempted to drill it out because there is nothing to grab. So the question is- can I just drill that out? If so, how would I replace it? Options? The axle is out from under the jeep so that makes it a little easier to mess with...
    57 cj5
    Thx!
     
  2. Jan 4, 2015
    sawilly

    sawilly Member

    Salmon Arm BC
    Joined:
    Jul 10, 2012
    Messages:
    67
    It probably is a roll pin . It just requires it to be pounded out .
     
  3. Jan 4, 2015
    rusty

    rusty Well-Known Member

    norfolk,va
    Joined:
    Dec 16, 2006
    Messages:
    1,652
    x2, roll pin.
     
  4. Jan 4, 2015
    47v6

    47v6 junk wrecker! 2023 Sponsor 2022 Sponsor

    USA
    Joined:
    Oct 25, 2006
    Messages:
    5,798
    I know that dana 30's use a roll pin.
     
  5. Jan 4, 2015
    H2Ohs

    H2Ohs New Member

    MA
    Joined:
    May 11, 2014
    Messages:
    35
    Here's a pic of the little thing. It's the rear by the way- sorry about that. The video i reviewed showed that pin needed to be removed in order to slide out the bigger pin and remove the diff. But it also showed it being unscrewed, not pounded out. But who knows- it was an later jeep video anyway.
    [​IMG]
     
  6. Jan 4, 2015
    H2Ohs

    H2Ohs New Member

    MA
    Joined:
    May 11, 2014
    Messages:
    35
    Some additional searching and i found the below.. I guess i need to find something to hit it harder with- should just slide out?
    [​IMG]
     
  7. Jan 4, 2015
    47v6

    47v6 junk wrecker! 2023 Sponsor 2022 Sponsor

    USA
    Joined:
    Oct 25, 2006
    Messages:
    5,798
    use a long pin punch that is the slightly smaller size diameter as the roll pin, or if you can find it a roll pin punch. those have a tit on the end that fits into the recess in the center of the punch.
     
  8. Jan 4, 2015
    djbutler

    djbutler Sponsor

    Rio Linda CA
    Joined:
    Nov 5, 2007
    Messages:
    727
    Wait a minute here...
    Is this a Dana 25 axle? Your signature shows your Jeep as a '57, so it should be a Dana 25 axle if it's original.
    As far as I know, D25 axles don't have C-clips retaining the axle shafts so why do you need to remove the spider gear pin? Just pull the axle shafts out then you can remove the entire differential case intact.

    Don
     
  9. Jan 5, 2015
    47v6

    47v6 junk wrecker! 2023 Sponsor 2022 Sponsor

    USA
    Joined:
    Oct 25, 2006
    Messages:
    5,798
    The make and model axle you are working on will get you a precise response on how to fix your problem. Not all Jeeps have the original axles, so figure out your model. Take some pics and post them if you're unsure. The guys here will identify it for sure.
     
  10. Jan 5, 2015
    H2Ohs

    H2Ohs New Member

    MA
    Joined:
    May 11, 2014
    Messages:
    35
    Ya, it's the rear axle and has a big 44 stamped on the short axle side. I think it's original.
     
  11. Jan 5, 2015
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
    Joined:
    Sep 23, 2002
    Messages:
    12,529
    Very early 44's had a solid tapered pin that was an interference fit. Later ones used a roll pin. It's common to "swage" the edges of the hole so the pin can't walk out.
    The Dana 44 does not require the pinion shaft to be removed to get the axles out. In fact, if you look at the shaft it will most likely hit the ring gear before it comes out.
     
  12. Jan 5, 2015
    H2Ohs

    H2Ohs New Member

    MA
    Joined:
    May 11, 2014
    Messages:
    35
    Ha, ya- my first picture even shows it. geesh. So is it just the big axle nuts at the end and it'll slide right out? (I removed them but they didn't seem to move..)
     
  13. Jan 5, 2015
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    12,367
    Not that simple at all, that's the first step. I assumed you were probably disassembling the whole axle to check everything. Next you need a big puller to remove the hub and drum assembly. Next is removing the backing plate/bearing retainer.
     
  14. Jan 5, 2015
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    12,367
  15. Jan 5, 2015
    47v6

    47v6 junk wrecker! 2023 Sponsor 2022 Sponsor

    USA
    Joined:
    Oct 25, 2006
    Messages:
    5,798
    When you get the special puller for the hub, make sure you leave on the nut and washer a couple turns. When the hub lets loose it can come off with a lot of force and break whatever is in front of it, or it can come off nice and easy. I have seen it both ways.
     
  16. Jan 5, 2015
    H2Ohs

    H2Ohs New Member

    MA
    Joined:
    May 11, 2014
    Messages:
    35
    Ok- It's making more sense. Thanks for links and advice. I'll give it a shot and take pics along the way for other visual people like myself. :)
     
  17. Jan 11, 2015
    H2Ohs

    H2Ohs New Member

    MA
    Joined:
    May 11, 2014
    Messages:
    35
    Ok- more progress. After multiple trips to try to find/rent a the correct hub puller- I simply used a gear puller. I know I was advised against it, but nothing seemed to bend and they popped right off. Removed the backing plates, etc. and was left looking at the axle. One side I managed to get out, the other side is stuck. The side I got out was very rusty. Axle is quite rusty and rust around the seal too. Is this typical? Doesn't oil go all the way out to the outer seal and bathe the axle or no? See picture below.
    Questions-
    Other stuck side, slide hammer the best option?
    I'm this far- is there anything I should bother with on the inside?
    All of the things labeled in my pic simply get replaced- nothing is pressed?
    Any other advice?
    [​IMG]
     
  18. Jan 12, 2015
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
    Joined:
    Sep 21, 2002
    Messages:
    12,367
    You labeled the bearing and cone correctly, the bearing is pressed on. You have a good handle on it, just clean up the inside of the axle housing reasonably well. You got lucky on the puller, the hub should have been harder to get off.
     
  19. Jan 12, 2015
    Howard Eisenhauer

    Howard Eisenhauer Administrator Staff Member

    Tantallon, Nova...
    Joined:
    Nov 22, 2003
    Messages:
    8,102
    No, it shouldn't be rusty, you had water in your differential at some point. Do a search here for "dana 44 axle vent".

    Once cleaned up check the section inside of the bearing stop ridge carefully- that's polished up for the seal that keeps the differential lube out of the bearings. If it's pitted/worn install a "Speedy Sleeve"

    H.
     
  20. Jan 12, 2015
    H2Ohs

    H2Ohs New Member

    MA
    Joined:
    May 11, 2014
    Messages:
    35
    Too funny. Thanks for the vent info. I went and checked mine and it was clogged full of gunk. Can't wait to see what the axle looks like when I finally get it out.
     
New Posts