well being around trucks now for quite a few years I am almost 100% sure its you muffler bearings that are going. There a cheap fix and won't give you problems once there fixed. The OEM ones suck!!!! I would recomend ones from Kalecoauto....here is there url http://www.kalecoauto.com/
They have some top of the line muffler bearings there for a reasonable price. Check them out!!!
Good luck/wwwthreads_images/icons/wink.gif/wwwthreads_images/icons/smile.gif
Ryan
93 GMC Yukon
Chevy SuperStock 4x4 Truck Puller
Great Lakes Truck & Tractor Pulling Association
http://www.greatlakespull.com
They have some top of the line muffler bearings there for a reasonable price. Check them out!!!
Good luck/wwwthreads_images/icons/wink.gif/wwwthreads_images/icons/smile.gif
Ryan
93 GMC Yukon
Chevy SuperStock 4x4 Truck Puller
Great Lakes Truck & Tractor Pulling Association
http://www.greatlakespull.com
