 I am a 72 yr old #38 FORD truck owner since  age 14. The F-350  '06 KING RANCH Crew Cab 4WD is the very best Ford I have ever owned. The torque  &  HP is matched  perfectly. I have  pulled my 16,000# boat & trailer with great ease & handling. We have also had 17,000# on bumper pulling a tractor behind, front end due to tractor load was somewhat light. The KING RANCH option is well worth the added money as the comfort level & feel is awesome. The turning radius on this coil spring setup is far superior to the 2004 we owned. We now have 4000 miles and the earlier mileage was 16-18 MPG,  now 13-14.  Looking forward to oil change & filter change.