When I come a stop I get this loud clunk from the rear end, It makes me think somebody has rear ended me. Does not happen all the time, but over 705 of the time. Any ideas? The tranmission is new and they say it is not in the tranny, but I thinking it might be down shifting after stop.

I have a 1999 2wd doing the very same thing.

Had this happen on my 89 burb....it was a badly wounded rear end. The carrier had actually cracked at the yoke....check yours carefully.

Are you sure you are not experiencing driveline clunk? Driveline clunk is a normal noise which comes form all the play in the driveline. Another area to look at is slip-stick condition of the rear drive shaft yoke at the transmission. The yoke gets cocked and makes a noise. GM has a new teflon coated yoke for this conditon. Go ask your dealer about this condition.

Remove the drive shaft. Clean the spline (on the drive shaft) with solvent. Replace grease with special grease that is only availabel, from a GM dealer. The parts department should know what you are looking for. A small can costs around $30.00 but it will last a long time. I have to do this to my 97 Tahoe about twice a year. It takes about 30 minutes.

Sounds like all Tahoes have the same problems, mine also has a clunk in the drive shaft, replace the u-joints and it will fix it for awhile

i have a 99 4x4 tahoe and i took it in for the spli noise... mines sorta a clunk/high spitched clunk goin on. they said it is they yoke tha tis slipping and they told me that chevy has not yet designed a new yoke for the tahoe.