What did I break?

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  • Dirt Wag
    258 I6
    • Jun 24, 2008
    • 358

    What did I break?

    Here's the situation:

    Stuck in mud like wet concrete - gas pedal to the floor - engine is really straining hard in 4LO to spin the wheels.
    I hear a loud bang and see my left front wheel stop moving - I let off the gas
    floor it again and everything turns like it should for a few seconds then it happens again. The same thing happened several more times that day.
    At first I was sure something broke but if the strain is not too much everything seems to pull OK. It happens only when I go into some deep mud.

    My first guess is the front Quick Lok (same as EZ Locker) - max recommended tire size is 32" and I'm running 37's - I think the teeth are sliding over each other. I pulled the diff. cover and there were a few very small metal shavings but no broken parts and everything looks OK.

    Is it possible the t-case chain is jumping over the sprockets?

    What do you guys think?
    1985 GW, 360, 727, NP229, D44, AMC20, HEI, SOA/shackle flip 7" lift, Quick Lok locker rear, Aussie Locker front, 4.10 gears, 37 X 13.5 Interco SS-M16's, Warn Premium hubs, Tuff Stuff 12,000 LB winch, rear disc brakes === stripped down street legal off road toy
  • serehill
    Gone,Never Forgotten.
    • Nov 22, 2009
    • 8619

    #2
    Possible

    It could be the locker disengaging & engaging. Especially unber load it would pop. I hate it when they do that. One wheel binds & the other wheels isn't getting any grip will cause that.

    80 Cherokee
    360 ci 727 with
    Comp cams 270 h
    NP208
    Edlebrock performer intake
    Holley 4180
    Msd total multi spark.
    4" rusty's springs
    Member, FSJ Prissy Restoration Association

    If you can't make it better why waste your time. No use repeating the orignal mistakes. I'm to old to push it that's why.

    Comment

    • Shwagoneer
      232 I6
      • Aug 24, 2011
      • 75

      #3
      i had this happen on my wag. similar scenario, 4lo, rpms maxed, climbing a steep sand hill. ended up being the cardan joint on the front shaft. the stabilizer ball busted. if you crawl under your rig, grab the front shaft and see if there is play left to right.
      GARAGE - (empty)

      SOLD - 1981 Wagoneer Limited AKA The Swagoneer
      rebuilt AMC 360, TF 727, NP208, D44's
      6" BJ's lift
      BJ"s Sway bar disconnects
      Rancho 9000 shocks
      33/12.5/15 BFG A/t's
      M/T Classic II Wheels
      and alot of other goodies and doodads

      http://i106.photobucket.com/albums/m...3/wagoneer.jpg

      Comment

      • novacayne75
        258 I6
        • Dec 28, 2008
        • 291

        #4
        sound to me like a broke locking hub or your locker is crap (most likely) the fix would be toss it and install an aussie or spartian locker. im not bashing your stuff but those lockers arent well known for holing up long due to soft metals.
        78 j-truggy d60/14b,42's,tbi.
        97 zj long armed and locked on 35's
        03 quad cab 3500 ctd tow pig.

        Comment

        • elbastardo
          327 Rambler
          • Oct 04, 2005
          • 507

          #5
          Sounds to me like A hub. I would start on the outside and work your way in, If it were the Tcase then it wouldnt stop 1 tire from turning, it would disengauge both. If your running A 44 front on 37s with A locker then the hub acts like A fuse, generaly the weakest link, and the easiest to repair. I might be wrong on my thinking but its definatly easier to start from the hub and work your way in.

          When I was running A 10 bolt front on 38s up front, I had A spare set of hubs in the rig. There really easy to replace.

          Comment

          • serehill
            Gone,Never Forgotten.
            • Nov 22, 2009
            • 8619

            #6
            interesting

            If it's poping & kept on working.
            I've never seen a hub break & keep on working.

            80 Cherokee
            360 ci 727 with
            Comp cams 270 h
            NP208
            Edlebrock performer intake
            Holley 4180
            Msd total multi spark.
            4" rusty's springs
            Member, FSJ Prissy Restoration Association

            If you can't make it better why waste your time. No use repeating the orignal mistakes. I'm to old to push it that's why.

            Comment

            • lunchbox1671
              350 Buick
              • Sep 22, 2010
              • 774

              #7
              I'll bet you sheered some teeth off of your front differential. Works fine till it gets to the section with the missing teeth....
              1979 Jeep Cherokee Chief Sport 4 door N/T.
              -AMC 360 with RV cam
              -T-15A, Dana 20
              -Dana 44's, 3.54's,
              -32x11.50r16's

              Comment

              • Hutcho
                327 Rambler
                • Jun 22, 2010
                • 641

                #8
                what did i break?

                Pride?
                Formally known as "oilfieldtrash354"

                "Grandpas" 1979 J-10 resto/mod-on hold for now

                Preparing for Ouray 2013!!!!

                Comment

                • novacayne75
                  258 I6
                  • Dec 28, 2008
                  • 291

                  #9
                  Originally posted by serehill
                  If it's poping & kept on working.
                  I've never seen a hub break & keep on working.
                  i doubt that's his problem but i have seen a hub crack the drive gear and it just let it jump splines under load.
                  i had to make a puller to remove it cause it was jammed into the wheel hub.
                  78 j-truggy d60/14b,42's,tbi.
                  97 zj long armed and locked on 35's
                  03 quad cab 3500 ctd tow pig.

                  Comment

                  • serehill
                    Gone,Never Forgotten.
                    • Nov 22, 2009
                    • 8619

                    #10
                    I guess anything is possible

                    Originally posted by novacayne75
                    i doubt that's his problem but i have seen a hub crack the drive gear and it just let it jump splines under load.
                    i had to make a puller to remove it cause it was jammed into the wheel hub.
                    That doesn't exactly match what he's saying is happening. Just like broken teeth doesn't match. I've broke teeth & you'll know when that happens. & it doues drive ok after that. The only hub I ever broke did split & under load it out make a wierd sound but not a pop after it broke. You could just hear the splines stripping out more.

                    80 Cherokee
                    360 ci 727 with
                    Comp cams 270 h
                    NP208
                    Edlebrock performer intake
                    Holley 4180
                    Msd total multi spark.
                    4" rusty's springs
                    Member, FSJ Prissy Restoration Association

                    If you can't make it better why waste your time. No use repeating the orignal mistakes. I'm to old to push it that's why.

                    Comment

                    • Sambo
                      AMC 4 OH! 1
                      • Sep 25, 2001
                      • 3585

                      #11
                      pull your hubs and report!
                      just a question,did you buy a new cross shaft when you put the "quick lock" in? this is the #1 problem with all lunchbox lockers!
                      77 chero DEAD.
                      84wag,360,tf727,???! possiblities are d300 flipped and a ford d44 hp with coils

                      Comment

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