2004, 6.0L, 4WD, AUTO TRANSMISSION, F-350 CREW CAB, I DO NOT KNOW GEARING, :dunno 4" EXHAUST OTHERWISE STOCK AS FAR AS PERFORMANCE UPGRADES.
FAIRLY EMPTY 15-16MPG (HAVE 56 GALLON FUEL TANK NOT 38 GAL PLUS FG TOPPER AND USUALLY EMPTY 100 GALLON TANK IN BED)
HEAVY HEADING TO HUNT 1200 MILES...