Engine, 4.3L FlexFuel EcoTec3 V6 with Active Fuel Management, Direct Injection and Variable Valve Timing includes aluminum block construction with (FHS) E85 FlexFuel capability, capable of running on unleaded or up to 85% ethanol (285 hp [212 kW] at 5300 rpm, 305 lb-ft of torque [413 Nm] at 3900 rpm) (Includes (FHS) E85 FlexFuel capability. Not available on C*15743 models.)
Rear axle, 3.23 ratio (Standard and only available on (LV3) 4.3L EcoTec3 V6 engine with 2WD models.)
Pickup box
GVWR, 6700 lbs. (3039 kg) (Requires Regular Cab models.)