Steering, power, rack-and-pinion
Suspension, rear 2-stage multi-leaf springs, semi-elliptic
Rear axle, 3.42 ratio (Refer to Engine/Axle chart for availability.) (With (LC9) Vortec 5.3L V8 Engine, Requires (K5L) heavy-duty cooling package)
GVWR, 7000 lbs. (3175 kg) (Requires CC10753 models and (L9H) Vortec 6.2L V8 SFI engine and (NHT) Max Trailering Pack or CK10753, CK10953, or CK10543 models. Standard on CK10753, CK10953, or CK10543 models.)
Engine, Vortec 4.8L Variable Valve Timing V8 SFI FlexFuel capable of running on unleaded or up to 85% ethanol (302 hp [225.2 kW] @ 5600 rpm, 305 lb-ft torque [411.8 N-m] @ 4600 rpm), iron block (Standard on all models except C*10953 Models. Not available on C*10953 models.)
Frame, fully-boxed, hydroformed front section
Battery, heavy-duty 600 cold-cranking amps, maintenance-free with rundown protection and retained accessory power
SAFETY
StabiliTrak, stability control system with Proactive Roll Avoidance and traction control
OnStar, 6 months of Directions and Connections plan Includes Automatic Crash Response, Emergency Services, Crisis Assist, Stolen Vehicle Assistance including Stolen Vehicle Slowdown and Remote Ignition Block, Remote Door Unlock (requires power locks), Turn-by-Turn Navigation with Destination Download (requires navigation radio) and OnStar eNav (where available), OnStar Vehicle Diagnostics, Roadside Assistance, Remote Horn and Lights, and Hands Free Calling. (Visit onstar.com for details and system limitations.)
OnStar Turn-by-Turn Navigation (Deleted when (UE0) OnStar delete is ordered.)
Automatic Crash Response (Deleted when (UE0) OnStar delete is ordered.)
Door locks, rear child security (Crew Cab models only.)