LT3 PREFERRED EQUIPMENT GROUP - 3LTStandard Equipment
ONSTAR PLUS PACKAGE, - PDB(U2K) XM Satellite Radio, (UE1) OnStar and (UK3) steering-wheel mounted audio controls
SKID PLATE PACKAGE, - NZZaluminum front underbody shield starting behind front bumper and running to first cross-member, protecting front underbody, oil pan, differential case and transfer case, frame-mounted shields
SUSPENSION PACKAGE, RIDE-CONTROL, MANUAL-SELECTABLE, - ZX32-position electronic control for shock setting and smooth-road/trailering
VORTEC MAX PERFORMANCE PACK, - NHT(LQ9) Vortec high-output 6.0L V8 engine with "Vortec Max" engine cover and door badge that reads "Vortec Max", (M70) 4-speed automatic super-duty transmission, (GT5) 4.10 rear axle ratio (includes (GT4) 3.73 rear axle ratio on CC15543 models), (G80) heavy-duty rear locking differential, (ZX3) Ride-Control Suspension Package, (KC4) external engine oil cooler, (KNP) auxiliary external transmission oil cooler and (Z82) heavy-duty trailering equipment