Clunk on Aceleration from a stop

[HUMTECH]

Check your front diff mounting bolts. We just had one in where the rear lower bolt fell out, the diff spun up and took out the oil filter, luckily the customer had the presence of mind to shut it down before killing the motor.

[HUMMERcustoms.com/TAZ]

HUMTECH knows better than me for sure but, just wanted to toss in the age old problem with GM trucks ans suvs. There has always, why is beyond me it cannot be corrected, been the dreaded drive shaft clunk. It is most likely not the problem here but, all should keep this problem in mind for future.

TAZ

[HUMTECH]

True, that annoying but subtle clunk from a stop. There was a "fix" for this but it still seemed to come back in some cases. There was an updated slip yoke for the shaft that was nickle plated. Problem was mostly in full size trucks but was also a problem on some early model h-2's. This was a very subtle clunk type noise and was not damaging but more of an annoying problem. All in all worth a look though. Another way to band-aid this problem was to remove the rear shaft and lube the splines of the slip yoke with a gm "special lube" similar to lithium grease but a little thicker.

[tomp]

Oh yeah, I forgot about the drive shaft clunk. Mine does it when I come to a slow corner, make the turn and then speed up.

Then there's the front body mounts too