THIS FORD F550 4X4 ROLLBACK HAS A 7.3 DIESEL WITH A A/T TANNY ,THE TRUCK RUNS GREAT, THERE IS A LOT OF NEW PARTS IN THE TRUCK.[ ALL NEW INJECTORS,NEW TRANNY , ALL NEW BRAKES AND ROTORS,SHOCKS,ALL NEW U-JOINTS ,BALL JOINTS,BATTERIES,BELTS , AND MORE.THE ROLLBACK IS A 19 FT JERR-DAN WITH A WHEEL LIFT .THE JERR-DAN BED IS ONLY 3 YERAS OLD IT COST ME [ 23,000.00] THIS TRUCK IS BETTER THE A NEW ONE AND IT IS GREAT IN THE SNOW .