Clunk heard when letting on/off gas?

[solarflare]

Just curious, I have an 08' H2, and just recently I noticed that I have a clunk when I take the foot off or put it on the gas pedal.....It's a hard noise to describe, but it's almost like the driveshaft making the noise.....It doesn't do it all the time, but it's annoying.....
It's only started doing this since about a week ago. I have approx 6800 miles on her now....any thoughts would be great!

[lasvegash2]

mine does the same thing....

[TGCOFTN]

My 2008 does the same thing.............my 2007 dont make the noise.

I know the noise your talking about, but I dont know how to describe it on a message board, LOL

[solarflare]

yeah, it's really hard to describe what it does...scared me yesterday though...I was in traffic and coming to a stop, and the front end went bang. Seems like a driveline issue. I did find that there are a lot of TSB's in regards to this problem, and that there are updates to correct it. The only problem is I don't know what the actual bulletins say, I just have the #'s. Here are a few:

99-04-20-002E JUN 08: Drivetrain - Driveline Clunk Noise Information
07338A JUN 08: Campaign - ECM Update for OBD Improvements
08080 MAR 08: Campaign - Reprogram the TCM
01-04-18-001F FEB 08: Drivetrain - 4WD/AWD Driveline Operating Characteristics
01-07-30-042E MAY 07 A/T - 2-3 Upshift or 3-2 Downshift Clunk Noise

[Stainless]

I occasional hear the same. My service guy said it was from running low octane gas. Are you guys running Premium?

[HummerJim]

My 2008 does it when it's cold or when I get off the highway and slow down to a stop after a long highway drive. I think it's the 6 speed transmission and I really don't notice it that much anymore.