Clunk in rear end?

[Bogle45]

Everytime I take off from a stop... well maybe not everytime, probably 60% of the time. When I take off from a stop I hear a kind of high pitched clunk in the rear end. Any ideas about what this may be?

[ridgekid]

Everytime I take off from a stop... well maybe not everytime, probably 60% of the time.  When I take off from a stop I hear a kind of high pitched clunk in the rear end.  Any ideas about what this may be?

 

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This happened on my 97 Tahoe earlier this year. Crawl underneath and look and see if you have a U-Joint going out. Grab the drive line (while in park) and try to rotate the drive shaft back and forth. Check both ends of the driveshaft as one of my U-joints had more wear than the other.

[GM-Tech]

Never heard "high pitched" used along with "clunk", but I suspect it could be the infamous slip yoke clunk. Do a search for that. It's been discussed probably thousands of times.