Real Time Tech: Trouble Getting Axle Out of 80 Series

Discussion in 'VA/DC/MD- Capital Land Cruiser Club' started by Felix, Aug 24, 2018.

  1. Felix

    Felix

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    Almost a year on, and I'm finally getting the chance to pull the diff and see what I broke on my way back from Fall Crawl last year.

    I need advice on getting the short side axle out.

    The birf comes out but gets wedged. I'm sure this is because I don't have the flat sides of the birf perfectly lined up top and bottom. But I can't turn the axle the 10 degrees or so that I need.

    The long side axle is out. The diff is locked (I'm pretty sure - got the solid red light but that was just from turning the steering wheel and driving a foot or two in the driveway). Haven't pulled an 80 third before, but I understand that I need to have the diff locked to do so.

    What's the trick?

    Should I unlock the diff, and relock it once the axle shaft is out prior to diff removal? Will that cause issues?
     
  2. Felix

    Felix

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    Never mind! I came to my senses and pulled the drive shaft.

    Duh.

    Carry on.
     
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  3. Felix

    Felix

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    Okay, another question. Does the locker actuator need to be removed before pulling the diff out?
     
  4. iptman

    iptman

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    I've never pulled the 3rdbut I have removed and replaced the locker actuator. It's easy enough to do whether you have to or not idk. I'll check my fsm in a sec and see what it says and post back.
     
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  5. iptman

    iptman

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    Looks like a negative on removing the actuator. You just have to disconnect it.

    IMG_20180824_215240325.jpg IMG_20180824_215203646.jpg IMG_20180824_215422477_HDR.jpg IMG_20180824_215443946.jpg IMG_20180824_215515478.jpg
     
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  6. Felix

    Felix

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    Thanks, Patrick!
     
  7. bkfj40

    bkfj40 SILVER Star

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    Hope you don’t find what I found in my diff !
     
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  8. Felix

    Felix

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    Well, it wasn’t as bad as I expected. But, then again, I don’t know the difference between normal wear and catastrophic damage. What I do know is that there a no huge chucks missing from teeth.

    What do you think?

    D2FDD8AD-2113-4135-AF7D-1E5EA79960B4.jpeg EBE58220-AA0D-4927-9743-19725CC04607.jpeg
     
  9. Felix

    Felix

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    All the teeth on the ring hear have that scoring on the mating surface.

    Didn’t take it apart, but here’s a shot of the pinion. What looks like a dab of grease at the end of each tooth is actually almost like a bit of slag. If that’s not normal, then Did I shave and then melt a bit off each tooth and then deposited it on the nose end surface?


    4199AABB-8ECC-454F-8906-4B528F373987.jpeg 486B542A-AA28-4AE3-9374-466FF1C7A7E2.jpeg
     
  10. 76FJ40

    76FJ40 Old Fart SILVER Star

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    No bueno.
     
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  11. Jakes40

    Jakes40 IH8MUD Poser

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    Those gears are trashed!! Was there oil in there?
     
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  12. Cruiserdrew

    Cruiserdrew On the way there SILVER Star

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    Ya-Gears are shot. Looks like they were run low on oil, but regardless, you can't put them back in. Bearings likely trashed too. No big deal, just get it rebuilt. I can recommend @gearinstalls.com but you could get it rebuilt locally too.
     
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  13. iptman

    iptman

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    Meh.... @OTRAMM is the sheriff in these here parts. :D

    Does Stump still have the front axle in his parts 80?
     
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  14. Jakes40

    Jakes40 IH8MUD Poser

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    Paging @Stumpalama
    Still have the front diff for your parts 80?
     
  15. iptman

    iptman

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    Or maybe someone who regeared to 4.88s has the 4.10s sitting on a shelf? Ryan, what do you do with swapped out ring and pinion gears?
     
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  16. Felix

    Felix

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    Well, there was when I left Rausch Creek. But by the time I got to the Baltimore Beltway the drain plug was gone, the oil was sprayed across the undercarriage (a rust preventative!), and smoke was coming out of the drain hole.

    So, I knew it was bad. I just didn’t know what bad looks like.

    Thanks, everyone. I’m sure I’ll have more questions once a get a new diff or gears.
     
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  17. OTRAMM

    OTRAMM Supporting Vendor

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    Generally we toss the gears. They don't really set up well in new housings after they've been run for a lifetime in another housing. I keep the carriers around for when the pinion eats them but that's it.
     
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  18. Cruiser804

    Cruiser804 SILVER Star

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    i have an 80's diff in my shed from when I installed factory lockers. Good when I took it out. But, ahh, I can't remember if it is front or rear. i
    'll check and let you know. if its what you need its yours
     
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  19. Cruiser804

    Cruiser804 SILVER Star

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    Here it is. Can some confirm this is a front. I think it is. There's a little sawdust in there but otherwise it looks really good. I think it has about 130k on it.

    IMG_0230.JPG

    IMG_0231.JPG

    IMG_0232.JPG

    IMG_0233.JPG
     
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  20. Cruiserdrew

    Cruiserdrew On the way there SILVER Star

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    Sure looks like a high pinion front.
     
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