Driveshaft Issue Nbs Silverado Crew Cab

[2008whitechevy]

ok i have an 08 nbs silverado crew cab at 25k miles i started hearind this clunk/bump when coming to a stop like if someone just hit me from behind and then after i owuld go the truck i guess was lifted from the back i can feel then i accelerated or go and i can fell it go a lil bit down to levelness back to normal actually i still have warranty on this i have 52k miles whats the solution for this it is annoying as hell!!!

[96chevy7.4L]

The clunk you seem to describe is the ever popular slip yoke issue. You can grease the slip yoke where the two driveshafts meet. Any good grease synthetic or not will work well. They make a fix for it from chevrolet but according to who you talk to depends on whether it works or not.