I put over $12000 in my 01 F250 7.3 in 2012. It has 22500 miles on it crew cab lariet. All new brakes (rotors and pads), both front unit bearings, tierod, draglink, sway bar links, ball joints, new diff seals, vaccum seals, u joints front and rear and axle, carrier bearing, rear ring and pinion, tires, power steering pump, icp sensor, glow plug relay, reman engine at 218000 miles with new injectors, glow plugs, and turbo.
My 06 F350 has had $6K spent on it in 2012 also. Heard gaskets, turbo, ARP head studs, injectors, oil cooler. I am probably forgetting alot of parts on both of these trucks. They both work hard every day and pull way to much. The dually grosses out about 33000lbs two or three times a week and the 250 has pulled the same load for about 10000 miles. Maybe I need a bigger truck or just new trucks.