I've owned this truck for 8 years and take exceptional care for it. I always wash it and keep the salt off it, it is so well cared for it still has all original rot/rust free body panels. but I removed the bed last week to change the fuel pump and the rear frame from gas tank rear is paper thin and missing in sections, and it still has original gas lines but brake line has been replaced. The framed on these trucks are known for this. I have always owned Chevy trucks, but the older style and the frames never rotted in them. I think gm should be held responsible to replace or buy back these trucks for the owners