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Duece, let's re-group on this problem a little bit.

First, can I assume that you have open differentials in both axles? If not, what type of traction aiding devices do you have in each axle? Some lockers and LSDs will give the sumptoms that you describe when they start going bad.

Second, what kind of transfer case do you have? Does it have a chain drive in it? If so, how long has it been since you had it apart and looked at the chain and sprokets?

Third, do you have a CV (double-cardan) joint on either of your driveshafts? Sometimes they can make a popping sound when they start going bad.

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Yes, no traction aiding devices.

I'm not sure on the t-case, but it was rebuilt 6 mos. ago b/c we thought that was the problem. Even though everything looked ok, we still rebuit it.

No on the cv joints also.

The transmission was rebuilt about a year ago b/c we thougth it might be the problem, and there was some wear in the gears. We also found some metal shavings in the oil, which is not uncommon, but we figured that HAD to be the culprit so we rebuilt it.

Big Jim, what am I missing here? Have I not checked all you stated in your posts? Tell me what I'm missing b/c I think I've exhausted what resoureces you've been able to give me.

Oh, and to add it is not a "popping" sound, it is more like banging. I'm serious, it literally sounds like someone beating on the drivetrain with a sledgehammer when it happens.

Duece

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"When you're dumb...you've gotta be tough!"
81' Jeep CJ5 31x15.50 Ditch Witch Tractor tires 8500lb winch dog box; 92' Toyota p/u 3.0 v-6 auto tranny, 31x12.5 Super Swamper Bogger's, JVC CD player 8" Bazooka Bass tube, Clarion mids and highs.

Edited by duece (04/14/08 07:51 AM)

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