Hey guys. I just bought a 2002 chevy 2500 HD with the Duramax 6.6 and the Allison Transmision. I notice that when I leave a dead stop and start to move forward in Drive I'm feeling and hearing a pretty good jolt from the rear end. The shifting is super smooth and quiet but the something seems strange in the rear end. The Chevy dealership's sevice department is telling me this is a common characteristic in this truck with this powertrain. Wondering what you think before I pursue a 2nd. opinion.
I'm new to both this forum and Duramax/Chev. I just bought an 02 K3500 CC,LB,w/36K miles. I have not noticed such a rear end noise, clunk, or gear slack. The only time anything similar happens is when shifting the Allison into gear, then it's not a clunk, just a lurch against the brakes. Differential gear setup is exacting and if not performed with precision, either the gears will whine, clunk, growl, well you get the idea. Kinda like never buy a car built on Friday or Monday thing- well perhaps you guys are too young to remember those days.
Pull the driveshaft and lube the spines, noise will go away.
__________________ 03' GMC K2500HD SLT CC SB
EJ w/Attitude, SC LV III (Thanks Eric), Nicktane, H2's w/ BFG Rugged Trails, little black tubes to step on, custom dented tailgate w/ VR Straps to hold it in place, Denali projector beam headlights, Bilstiens, Line-X over the rails (protects against scratches, not dents), Air-Lift SD bags(to control the sag) and parts from http://www.gmdieseltech.com/
Hey guys. I just bought a 2002 chevy 2500 HD with the Duramax 6.6 and the Allison Transmision. I notice that when I leave a dead stop and start to move forward in Drive I'm feeling and hearing a pretty good jolt from the rear end. The shifting is super smooth and quiet but the something seems strange in the rear end. The Chevy dealership's sevice department is telling me this is a common characteristic in this truck with this powertrain. Wondering what you think before I pursue a 2nd. opinion.
Thanks guys.
Does that '02 have the one piece aluminum telephone pole under there?
If you have the two piece you may need to upgrade (if in warranty) there was a bulletin out that addressed this... "launch shudder" or like Aketay said lube those splines...
Quote:
Originally Posted by aketay
Pull the driveshaft and lube the spines, noise will go away.
You took the words right outta my mouth Tony...
__________________ "Democracy is two wolves and a lamb deciding what to have for dinner. Liberty is a well-armed lamb." -Benjamin Franklin
Pepperidge 01' GMC CC SB 4x4 D/A 265/75/16 Dueller AT Revo's, SunCoast StageV transmission EFI Live
Proud member of Diesel Towing Resource
Last edited by Pepperidge : 12-22-2005 at 04:57 PM.
AutoForums.com is the premier network of enthusiast-owned
enthusiast-operated automotive communities.
We operate more than 100 automotive forums where our users consult peers for shopping information and advice, and share
experiences and opinions as a community.
Linear Mode
