Engine, Vortec 4.8L V8 SFI (279 hp [208 kW] at 5200 rpm, 294 lb-ft of torque [400 N-m] at 4500 rpm) (Includes external engine oil cooler. Standard on *G23*05 models and *G33*05 models. Reference the Engine/Axle page for availability.)
Rear axle, 3.73 ratio (Standard on the *G23*05 and *G33*05 models. Available on ** 13405 models with (LMF) Vortec 5.3L V8 SFI engine. Reference the Engine/Axle page for availability)
Body, standard
Rear wheel drive
Battery, 600 cold-cranking amps, maintenance-free with rundown protection and retained accessory power