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Front Differential Exploded

Discussion in 'Early CJ5 and CJ6 Tech' started by johnsotd, Mar 12, 2017.

  1. johnsotd

    johnsotd Member

    Went for a drive around the block and disaster struck. I was going as fast as the f-134 would go when "BOOM". The front end locked up and the front driveshaft snapped in two.
    Before I start to open this thing up does anyone want to venture a guess as to what happened? What am I likely to find.
    As far as I know everything else is still as it should be, hopefully.
    Thanks
     
  2. Twin2

    Twin2 not him 2024 Sponsor 2023 Sponsor 2022 Sponsor

    was jeep in 4WD on pavement . you won't know what happen till you pull cover
     
    Tom_Hartz likes this.
  3. Tom_Hartz

    Tom_Hartz Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Wow that sucks. Was it in 4WD by mistake? Did the front end roll after the driveshaft is out? Keep us posted.
     
  4. Tom_Hartz

    Tom_Hartz Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    You posted faster than I did.
     
  5. jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    Post pics please...
     
  6. johnsotd

    johnsotd Member

    Evidently it was in 4wd but the hubs were free.
    It will not roll now with the hubs engaged.
    It was not making any noise before this happened. Running quiet and smooth.
    I had hoped to be finished with this build but it doesn't seem to want to turn me loose just yet.
     
  7. Keys5a

    Keys5a Sponsor

    Just curious, but where did the driveshaft break? Slip yoke, u-joint, tube?
    As you know, there was a catstrophic failure, and you won't know until you open up the front cover. Sounds like a bolt or piece of broken gear got lodged between the ring gear and the pinion mesh.
    -Donny
     
  8. 1960willyscj5

    1960willyscj5 Well-Known Member

    You have a locker in the front diff?
     
  9. johnsotd

    johnsotd Member

    Well, this is very embarrassing but I guess I have to confess.
    I did not have a mechanical failure, I had a mechanic failure.
    It seems that I did not read the part where front differentials require OIL.
    My wife says this is not the dumbest thing I have ever done but it ranks pretty high.
    This may be an expensive repair and take a lot of work. As it stands, my front end is locked up tighter than an iron gate

    Sorry to have bothered y'all with something this stupid.
     
  10. Focker

    Focker That's a terrible idea...What time? Staff Member

    Usually that's the first question asked...Did you put oil in it? Just when we think...Don't ask the obvious. :whistle:

    Some people pay good money for welded locker. :sneak:
     
  11. Jeepenstein

    Jeepenstein Me like Jeep.. 2024 Sponsor

    Pfff, if you don't have a story like this in your past then you obviously have never done anything in your life.. We have ALL been there..
     
    73 cj5, Posimoto, sterlclan and 5 others like this.
  12. Twin2

    Twin2 not him 2024 Sponsor 2023 Sponsor 2022 Sponsor

    take the low road . just find another whole front axle
     
    Thean and dozerjim like this.
  13. homersdog

    homersdog Tulsa, Ok 2024 Sponsor 2023 Sponsor 2022 Sponsor

    I thought I made a mistake once, but I was wrong.
     
  14. givemethewillys

    givemethewillys Been here since sparky ran it. 2022 Sponsor

    I agree with twin2, you should be able to find another front end for $50-200 and swap the whole thing in a few hours. Easy peasy.
     
  15. jeepstar

    jeepstar Well-Known Member 2024 Sponsor 2023 Sponsor 2022 Sponsor

    New axle, x2. Its easier and cheaper than rebuilding
     
  16. jpflat2a

    jpflat2a what's that noise?

    Can we still see pictures of the carnage ?
     
    Patrick and Brew88 like this.
  17. Glenn

    Glenn Kinda grumpy old man Staff Member

    I'd bet the bearings and/or the differential itself locked up.
     
  18. Twin2

    Twin2 not him 2024 Sponsor 2023 Sponsor 2022 Sponsor

    yep
     
  19. haighfam

    haighfam Member

    I like carnage, just not Jeep carnage. Would like to see it as a learning experience.
     
  20. Daryl

    Daryl Sponsor

    Great time to find a dana 30.