Went and picked up 3 yards of wet heavy topsoil on the 03 F-450 it is its first heavy load ie over 2000 lbs. I figured I had 7000 to 7500 lbs on the truck and it hauled it fine. The exhaust brake helps and the 6.0 works good I didn't push it but at 2000 rpm I could push on the go pedal even more. My old 7.3 PSD wouldn't have climbed the hills as easy. I'am definatly going to need to get a dump box I had two other guys to help me shovel off the load. I think the truck will work out well for doing small deliveries on the side.