I bet you're exactly right. I've seen my Brother and Law's field hand fully loaded with fuel and tools etc. hiting rice levies at about 20 mph and thinking nothing of it. That was one of the most beat up chevy truck beds I have ever seen, but the truck was still going when he sold it.
02 2500HD LT D/A SB CC 4X4 BLACK, Westin stainless nerf bars, BW GN Hitch,Racor 60S post oem fuel filter, Oil Guard bypass engine oil Filter. All synthetic fluids. Kennedy boost valve, edge, Modified air intake,EGT & Boost digital gauge,TransferFlow combo fuel & tool box, Air Lift Suspesion Bags Rear & compressor with remote, Bilsteins front & rear, Frontier front replacement bumper.