im a tow truck driver, and look around most of it is ford trucks..... we have a unit here with over 240 thousand miles on it and it still will pull anything we can throw at it btw its a 7.3. the new 6.4's are bigest hunk of junks out their hands down.... the truck as about 15k mikes on it and it has a anew motor already (melted a glow plug and burnt some pistons) its been in and out of the shop since we have bought it.