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4 wheel doesnt work

Discussion in 'Early CJ5 and CJ6 Tech' started by gochippermoon, Jul 11, 2006.

  1. Jul 11, 2006
    gochippermoon

    gochippermoon New Member

    castle rock, colo
    Joined:
    Oct 7, 2003
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    49
    I have a 67 cj 5 t18 twin stick transfer case. I was pulling a truck out in 4 wheel low and heard a pop noise. Now the 4 wheel doesnt work when engaged in 4 high or low. Where do I start looking for the problem. Hub or transfer case?
    Thanks,
    Jim
     
    gochippermoon, Jul 11, 2006
    #1
  2. Jul 11, 2006
    MCSCOTT

    MCSCOTT Member

    Columbia, Tn
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    Apr 24, 2006
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    If it was in the hub, the rear should still pull in 4hi or low. If it won't pull at all, it is most likely in the t-case.
     
    MCSCOTT, Jul 11, 2006
    #2
  3. Jul 11, 2006
    gochippermoon

    gochippermoon New Member

    castle rock, colo
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    Oct 7, 2003
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    The rear wheels still work in 4hi or low, not the front wheels. So you think its in the hubs?
     
    gochippermoon, Jul 11, 2006
    #3
  4. Jul 11, 2006
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    To me the most likely scenario is you busted the spider gears in the front end. One thing you can do is put it in 4 wheel drive, have the hubs unlocked, shut it off then reach underneath and see if you can turn the front drive shaft. Then take it out of 4 wheel drive, lock the hubs and see if you can turn the drive shaft.
     
    Glenn, Jul 11, 2006
    #4
  5. Jul 11, 2006
    Old Bill

    Old Bill Aggressively passive....

    Really Southern...
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    Along Glenn's line of thinking, IIRC, if you busted an axle shaft in the front end, wouldn't that create a similar situation?
     
    Old Bill, Jul 11, 2006
    #5
  6. Jul 11, 2006
    gochippermoon

    gochippermoon New Member

    castle rock, colo
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    Oct 7, 2003
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    I'll give that a shot. Thanks for the info.
    Jim
     
    gochippermoon, Jul 11, 2006
    #6
  7. Jul 11, 2006
    Mudweiserjeep

    Mudweiserjeep JEEP: Bouncy and Fun

    tipp city, ohio
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    718
    I would pop the front diff. cover and take a look. if the diff.(spiders) look good then I would start looking at hubs, then axles.
    My 2 cents :coffee:
     
    Mudweiserjeep, Jul 11, 2006
    #7
  8. Jul 11, 2006
    MCSCOTT

    MCSCOTT Member

    Columbia, Tn
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    Apr 24, 2006
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    905
    Take Glenn's advice first on checking things out. If you still can't figure it out pull the diff cover to see how things look. Look for any signs of metal in the gear oil, that would be a good indicator of where the problem is. It could be spider gears, R&P, broke axleshaft, or a lock out.
     
    MCSCOTT, Jul 11, 2006
    #8
  9. Jul 11, 2006
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    If the differential is open an axle shaft, u-joint, or hub would result in the front end not pulling so yes you're right on. I'm just going on personal experience on the weakest part (normally).
     
    Glenn, Jul 11, 2006
    #9
  10. Jul 11, 2006
    gochippermoon

    gochippermoon New Member

    castle rock, colo
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    Oct 7, 2003
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    Well,
    I tried Glenn' s idea and the drive shaft was tight both ways. Any thoughts?
    Jim
     
    gochippermoon, Jul 11, 2006
    #10
  11. Jul 12, 2006
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    Well, since it's not something obvious the next thing would be pulling the cover off of the front differential. Drain the oil into a clean pan so whatever you see in the oil (if you see anything) definitely came from the diff. Either that or start will pulling the hubs off looking for damage, stripped splines, etc. Your call as to which to do first. If it was mine I'd pull the cover first.
     
    Glenn, Jul 12, 2006
    #11
  12. Jul 12, 2006
    MCSCOTT

    MCSCOTT Member

    Columbia, Tn
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    Most of the cases I have seen like this, especially if you heard a loud pop, end up being either an axle shaft, spider gears, or ring & pinion. Take Glenn's advice and pull the diff cover. From what I have seen, unless your hubs are worn out or out of grease, it is more likely to be in the diff somewhere. Let us know what you find out.
     
    MCSCOTT, Jul 12, 2006
    #12
  13. Jul 12, 2006
    willysnut

    willysnut Banned

    Newnan, Ga.
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    Also check the outer axle shaft by locking the hub and watching for rotation of the axle in the steering knuckle area. I grenaded an axle there and trashed a spindle and inner bearing before.
     
    willysnut, Jul 12, 2006
    #13
  14. Jul 12, 2006
    Glenn

    Glenn Kinda grumpy old man Staff Member

    Apopka, Fl
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    I'm assuming he's got a closed knuckle so that wouldn't work. Open knuckle does make it easier sometimes to see what's going on.
     
    Glenn, Jul 12, 2006
    #14
  15. Jul 12, 2006
    MCSCOTT

    MCSCOTT Member

    Columbia, Tn
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    I was gonna say the same. One of the guys I ride with has exploded a ton of them on an open knuckle, and it is always easy to figure that one out. Closed knuckle requires a little disassembly.
     
    MCSCOTT, Jul 12, 2006
    #15
  16. Jul 12, 2006
    gochippermoon

    gochippermoon New Member

    castle rock, colo
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    Will do. Thanks for the info. I'll keep you informed.
    Jim
     
    gochippermoon, Jul 12, 2006
    #16
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