thinking of getting another truckto tow the racecar with. good deals are out there on new, but can save a lot on good used ones. let me know about mileage on the 6.7 cummins verses the 5.9. i am wanting to replace my 95 3500 cummins . also other good or bad points of each . 07 or 08 with 6.7 or 05 or06 with 5.9 thanks