Yes I never thought of the f*&^'s being a particularly heavy duty truck. I do know the 60 Chevy is a very common truck around here. Mine has a shorter chassis that most of them. I know the 60s are a very tough truck. When my 6400 is loaded with wheat it can have over 8000 lbs on it. Not knocking the f(&*'s but my dad come real close to buying one once and that harvest he was bringing a load of wheat in to town and low and B hold there sat that f*%$ Broke IN HALF right behind the cab with wheat spilling over it. HAHAHAHAHAHAHAHA Oh dear