in 09 i bought a 06 F 350 diesel 4wd lariat. 8 ft bed extended cab.. drove it balls to the wall stock and had no problems with the 6.0 ... Decided one day this past March to trade it in on a 2011 F 250 diesel 4wd lariat standard bed with only 1600 miles on it. all i can say is its a totally different truck..i miss my 6.0 but the 6.7 is pretty sweet so far.. tons of power. i thought my 6.0 was quick compared to my buddy's chipped 7.3 but this thing is pretty wicked.. ill tell ya what. ford really did their homework in my opnion. i looked at dodges and government motors, im hooked of superduties!! im looking to lift it and ill probably stop there for the time being