258,000 miles 1993 GMC K3500 Dually, 2 motors (down for the 3rd now) both of the motors have lost #8 piston, 3 injection pumps, 2 transmissions, 1 front end rebuild. Other than the motor has been a great truck. I am considering converting it to a 5.9 CTD/6 speed. Don' have much faith in the 6.5. As with all my equipment it was well maintained throughout its life, but just seemed to have motor troubles. The 4L80E is a good transmission, i got 165,000 out of the 1st one and the rebuilt was still going strong when the motor blew, it could probably stand to be freshened up, but is still going. I liked the pickup and would rather drive it than my new Dodge as it is more comfortable and handles better. Meabe when I get the CTD in it I will let my 18 yr old drive the Dodge and I'll take to old Jimmy back.