I'm new to the club and purchased an Avalanche 2500 this past summer and it's been a nightmare with the issues I've had. My latest is was my gas tank falling off when pulling my camper in October. I finally had a chance to replace the rotted strap and then noticed two body mounts on the back of the frame rails just in front of the bumper/hitch area that have totally deteriorated. I'm guessing pulling the camper caused the breakaged due to the excessive rust. It looks like the rear of the bed is secured to these mounts. I am having no luck at all finding these on line. The Chevy dealer told me that the left hand side has been discontinued. Any idea where these can be found? Is there an aftermarket resourse for these? Also, I noticed that I have an auxilary fuel tank and the straps are rotted. I believe it is being supported by the spare tire. I can't seem to find a source for these either. Thanks in advance for your assistance.