Base Engine: V8 Transmission, Allison 10 speed Automatic (STD) Rear axle, 3.73 ratio (requires (L8T) 6.6L V8 gas engine) GVWR 10,450 lbs Push Button start Transfer case, two-speed, electronic shift with push button control. Auto-locking rear differential Four-wheel drive Cooling, external engine oil cooler Cooling auxiliary external transmission oil cooler Air filtration monitoring Air filter, heavy-duty Air filtration monitoring Battery, heavy-duty 720 cold-cranking amps/80 Alternator, 170 amp Recovery hooks Frame, Fully-boxed, hydroformed front section and a fully-boxed stamped rear section Suspension Package Steering Recirculating Ball with smart flow power steering system Brakes, 4 wheel antilock, 4-wheel disc with DURALIFE rotors Brake lining wear indicator