Engine, 5.3L EcoTec3 V8 with Dynamic Fuel Management, Direct Injection and Variable Valve Timing, includes aluminum block construction (355 hp [265 kW] at 5600 rpm, 383 lb-ft of torque [518 Nm] at 4100 rpm)
Rear axle, 3.23 ratio
Suspension Package, Premium Smooth Ride (Included and only available with (5W4) Special Service Vehicle.)
GVWR, 7500 lbs. (3402 kg) (4WD models only.)
Automatic Stop/Start (Not available with (9C1) Police Vehicle or (5W4) Special Service Vehicle.) (Standard on vehicles built before 6-7-2021. Most vehicles built on or after 6-7-2021 equipped with a V8 engine will have (NSS) Not Equipped with Automatic Stop/Start, which removes Automatic Stop/Start, Engine control stop/start disable button and its content. See dealer for details.)