snap crackle pop and . . . a tow - Defender Source
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  #1  
Old June 28th, 2014, 11:39 PM
CaptMidnite
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Daniel Choi
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snap crackle pop and . . . a tow

Stopped at a red light today, green light and I release the clutch. Rig doesn't move, as if the brakes are applied. I forgot the exact sequence of things I did (jiggle transfer case, gun the engine a bit) but I manage to get the rig moving again at around 30-40mph. But rough rumbling noise coming from front end, so I get a tow. At home I jack up one of the front corners and turn the wheels by hand. Front drive shafts making rough noises as I rotate wheel. Front differential seems ok, will drain tomorrow to see if any metal shards come out.

So, the correct diagnosis is bad u-joints/front drive shaft? Should I replace just the u-joints or entire front shaft assembly? Replace rear drive shaft assembly too, as a precaution? Rig has high mileage, I'm not the first owner.

Could the bad front shafts have resulted from a bad transfer case? Vehicle can still move around, but with rough noises from front end. Or vise versa, can bad u-joints/drive shafts damage other components?

How do I test the front transfer case? I was thinking of up jacking up all four wheels, engaging diff lock and either turning wheels by hand or running engine.
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  #2  
Old June 29th, 2014, 12:42 AM
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evilfij
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evilfij
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Sounds like a broken CV joint. Does it run fine (but with noises) if you lock the diff?
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Old June 29th, 2014, 07:45 AM
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1of40
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Idk, but if you jack all four wheels you might not get the same result given they are not under load. I chased a DS issue for a while and learned it sounded differently when under load. Drive me nuts.

Clay
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