One problem related to other fuel system tank mounting has been reported for the 2005 Chevrolet K1500. The most recently reported issues are listed below.
The brake lines ,fuel lines and the frame crossmembers are all severely rusted. It just is a matter of time before I loose my brakes, go up in flames or drop my gas tank onto the highway. The body on this truck is not too bad. It has 92,000 miles on it, and it is cleaned quite often. The undercarriage is rusted very badly. I expected more from something that costs so much. Cant afford a new one and if I could it wouldn't be a gm. Have always owned gm in the past.