2001 silverado clunking noise

just replaced 2 rear driveshaft u joints stiil make clunking noise any ideas

just replaced 2 rear driveshaft u joints stiil make clunking noise any ideas

did "you" replace the U joints ?

clunking is occuring when ?

GIVE VEHICLE DETAILS ! 4WD? MILEAGE ? SERVICING /TESTING RESULTS ETC..

I fixed this on my truck and it should fix yours b/c I have only seen the 4wd models do this.

You need to replace the slip yoke for the rear driveshaft with an updated nickel-plated version. Mine was about $250 last summer and it was the only thing that fixed the clunk.

Also I would flush the t-case while you are doing it and coat the new yoke in fliud.

thanks guys for a quik response