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Old 06-01-2012, 07:18 AM
j cAT j cAT is offline
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Re: 99 Silverado Z71 5.3l rear clunk while turning

Quote:
Originally Posted by Easymoney1911 View Post
Hey everybody, got a little problem. More times than not now, when making a sharp left turn and sometimes a left turn in general, a loud popping/clanking/knocking noise comes from the rear of my truck. I can feel it in the steering when it's about to do it. The steering wheel will become stiff when turning left and when I straighten up it will pull to the right (just got the truck aligned so I don't think that's a problem). Rear left tire will spin like its struggling to spin. After all that I can make a hard turn right and "pop" everything will seem to go back to normal. Sorry for the long post just wanted to be as detailed as possible. Any suggestions/fixes is much appreciated. Thanks.
with the noise when turning I would suspect the ball joints.

tire shop alignment ?
also any steeering drift would indicate the camber is off. this also points to the ball joints as one of the reasons this is occuring.

what is your front end lube schedule ? what type grease are you using ?

on the rear diff. you must remove the cover and clean out the gear box. using mineral spirits paint thinner and a brush. wipe out the area with a cloth. then use the synthetic gear lube as required. fill to 1/2 inch below the fill hole . check again after diving a few miles.

the box needs cleaning / this is the proper way to do this. no cleaning will lead to failures. magnet is on the diff cover.
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