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Rear axle clunks under power???

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Old 10-17-10, 04:39 PM
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Rear axle clunks under power???

Ok its a GSL, so my new solid control arms are in and i thought the clunk i was hearing was my sway bar but i was wrong the rear end clunks everytime i hit the gas as if something is loose i might have to get a new 3rd member but if anyone knows a easy fix let me know i do have a gs axle i can scrap so hit me with ideas!
Old 10-17-10, 04:50 PM
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U-joint?
Old 10-17-10, 04:59 PM
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it could be but im almost positive it the differential there is a gear lube on my gas tank but none on the diff so i think its the differential input shaft i know it has a nut and ill see if it just needs to be tightened but anything else we can think of
Old 10-17-10, 05:15 PM
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loose differential bolts? I've seen it happen. caused a clunk upon accel too
Old 10-17-10, 06:03 PM
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I guess ill crawl under and give everything a spin and see what the drive-shaft feels like
i know when i had the tires in the air when i moved the wheels it made that clunk so its binding somewhere.
Old 10-17-10, 06:06 PM
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Yeah, sounds like U-joints or possibly gear lash. Good luck Nick.

btw (off topic), the wife just informed me that the party Saturday night is a costume party Expecting about 40 guests, so I hope you can make it so I've got someone to hang with. lol.



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Old 10-17-10, 09:52 PM
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I talkted to your wife me and mine will be there, i dont know about a u joint im realy sure its coming from the rear
Old 10-17-10, 10:35 PM
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Originally Posted by theNeanderthol
loose differential bolts? I've seen it happen. caused a clunk upon accel too
yep! me too, they loosen up when you drive hard + 30 years....
Old 10-19-10, 11:06 AM
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You're not going to be able to tighten that nut. If it's not a u-joint you'll need to remove the chunk and may be able to adjust the lash out of it. The procedure is described in Haynes man.
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