Engine, 6.6L V8 with Direct Injection and Variable Valve Timing, gasoline, (401 hp [299 kW] at 5200 rpm, 464 lb-ft of torque [629 N-m] at 4000 rpm)
Rear axle, 3.73 ratio (Requires (L8T) 6.6L V8 gas engine. Not available with (L5P) Duramax 6.6L Turbo-Diesel V8 engine.)
Durabed, pickup bed
GVWR, 10,650 lbs. (4831 kg) (Included and only available with CK20743 model and (L8T) 6.6L V8 gas engine with 18" or 20" wheels or CK20943 and (L8T) 6.6L V8 gas engine with 17" wheels.)
Trailering Package includes trailer hitch, 7-pin and 4-pin connectors and (CTT) Hitch Guidance
Engine, 5.3L EcoTec3 V8 (355 hp [265 kW] at 5600 rpm, 383 lb-ft of torque [518 Nm] at 4100 rpm); featuring all-new Dynamic Fuel Management that enables the engine to operate in 17 different patterns between 2 and 8 cylinders, depending on demand, to optimize power delivery and efficiency
Rear axle, 3.23 ratio
Durabed, pickup bed
GVWR, 7100 lbs. (3221 kg) (Requires Crew Cab 4WD model with (L84) 5.3L EcoTec3 V8 engine or (L87) 6.2L EcoTec3 V8 engine without (NHT) Max Trailering Package.)