hard take-off causes "CLUNK" - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 02-11-2001, 11:51 PM
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hard take-off causes \"CLUNK\"

I have a stock 81 cj7, I-6, 4 speed manual tranny. I have taken off kind of quickly a few times here lately and I hear a loud "clunk" sound that I think is coming from the rear end. I'm not taking off hard enough to bark the tires but harder than normal. Anyone have a clue about this? Thanks for any input

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post #2 of (permalink) Old 02-12-2001, 12:05 AM
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Re: hard take-off causes \"CLUNK\"

Welcome to the vast fraternity of those that have spun a 2 piece hub/axle. Sounds like time for some quality one piecers. It will let go completely in a short time if you dont do something. Retorquing the big nut on the end of the axle to 250 ft. lbs. may help.

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post #3 of (permalink) Old 02-12-2001, 01:56 AM
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Re: hard take-off causes \"CLUNK\"

[img]/wwwthreads_images/icons/crazy.gif[/img] 77-Cj7 has a set of single-piece axles, bearings and seals that he can ship to you.[img]/wwwthreads_images/icons/smile.gif[/img]

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post #4 of (permalink) Old 02-12-2001, 02:31 AM
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Re: hard take-off causes \"CLUNK\"

Could it maybe be bad U-Joints too?

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post #5 of (permalink) Old 02-12-2001, 08:17 AM
 
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Re: hard take-off causes \"CLUNK\"

I had a loud sound coming from the rear end on an early bronco when I launched quick, ended up being an axle wrap problem.
big ed

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post #6 of (permalink) Old 02-12-2001, 08:32 AM
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Re: hard take-off causes \"CLUNK\"

It could be the 2 piece axle, but I would check your rear u-joints first. A bad rear u-joint is the most likely cause when you hear the clunk ot ting sound when you first take off.

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