This is a 2004 7FGCU15. The motor and trans have had no work other than a headgasket and valve seals. King pins are still good. I know you won't believe me but the LP regulator is original, but I think that's next on rebuilds. I even think the SAS still works. This unit doesn't have a seat switch or a complex hydraulic control valve. Everything else has had to be replaced or rebuilt. New radiator, brakes, starters, alternator, tilt and lift seals, steer seals, chains, forks, seats, and carriage rollers. I must admit though, it doesn't go over the bumps as smooth and quiet as it used to.