Vortec 4.8L V8 SFI (295 hp [220.0 kW] at 5600 rpm, 305 lb-ft torque [411.8 N-m] at 4800 rpm), iron block (Standard on 2WD models only. Not available on 4WD models.)
Rear axle, 3.23 ratio
Alternator, 160 amps
Trailering equipment, heavy-duty, includes trailering hitch platform, 7-wire harness with independent fused trailering circuits mated to a 7-way sealed connector and (VR4) 2" trailering receiver