Engines

Trim Level Horsepower Torque
(lb-ft.)
SLE(3SA
pkg.)		 SLE(3SB
pkg.)		 SLT(4SA
pkg.)		 SLT(4SB
pkg.)
Vortec 5.3L V8, with Active Fuel Management, iron block (Requires 1/2-ton models, not available on 4WD) Standard Standard Standard Standard 310 335
Vortec 5.3L V8 FlexFuel, with Active Fuel management, capable of running on unleaded or up to 85% ethanol/E85, iron block
(Requires 1/2-ton models, not available on 4WD models). E85 is 85% ethanol and 15% gasoline. Visit www.livegreengoyellow.com to see if there is an E85 station near you.		 Available Available Available Available 310 335
Vortec 5.3L V8 SFI FlexFuel, with Active Fuel Management, capable of running on unleaded or up to 85% ethanol, aluminum block
(4WD 1/2-ton models only). E85 is 85% ethanol and 15% gasoline. Visit www.livegreengoyellow.com to see if there is an E85 station near you.		 Standard Standard Standard Standard 310 335
Vortec 6.0L Variable Valve Timing V8, with Active Fuel Management, aluminum block (Requires 1/2 ton models and Autoride Suspension Package) Not Available Not Available Available Available 366 376
Vortec 6.0L Variable Valve Timing V8 (Requires 3/4-ton models) Standard Standard Standard Standard 352 382

Mechanical

  SLE SLT
3SA
  pkg.		 3SB
  pkg.		 4SA
  pkg.		 4SB
  pkg.
Air cleaner, high-capacity Not Available Not Available Available Available
Alternator, 160 amps Standard Standard Standard Standard
Alternator, 145 amps Standard Standard Standard Standard
Cooling, external engine oil cooler, heavy-duty air-to-oil, integral to driver-side of radiator Available Available Available Available
Cooling, auxiliary external transmission oil cooler, heavy-duty air-to-oil Available Available Available Available
Differential, heavy duty locking rear Standard Standard Standard Standard
Engine block heater Available Available Available Available
Exhaust, aluminized stainless-steel muffler and tailpipe Standard Standard Standard Standard
Skid Plate Package, includes 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 Available Available Available Available
Snow Plow Prep Package, includes instrument panel switch, roof beacon wiring, forward lamp wiring and torsion bar Available Available Available Available
StabiliTrak, stability control system with traction control Standard Standard Standard Standard
Steering, power Standard Standard Standard Standard
Transfer case, active, 2-speed with push-button controls (4WD models only) Standard Standard Standard Standard
Transmission, 6-speed automatic, heavy-duty, electronically controlled with overdrive and tow/haul mode, tap up/tap down shifting (Requires 1/2 ton models) Standard Standard Standard Standard
Transmission, 6-speed automatic, heavy-duty, electronically controlled with overdrive and tow/haul mode (Requires 3/4 ton models) Standard Standard Standard

Transmission

Features  SLE SLT
3SA
  pkg.		 3SB
  pkg.		 4SA
  pkg.		 4SB
  pkg.
Rear axle, 3.42 ratio Standard Standard Standard Standard
Rear axle, 3.73 ratio Standard Standard Standard Standard
Transmission, 6-speed automatic, heavy-duty, electronically controlled with overdrive and tow/haul mode, tap up/tap down shifting; 1/2-ton models only Standard Standard Standard Standard
Transmission, 6-speed automatic, heavy duty, electronically controlled, with overdrive and tow/haul mode; 3/4-ton models only Standard Standard Standard Standard

Steering

Turning Diameter  2WD 1/2-TON 4WD 1/2-TON 2WD 3/4-TON 4WD 3/4-TON
Turning diameter, curb-to-curb, ft 43 43 45.3 45.3
Features  SLE SLT
3SA
  pkg.		 3SB
  pkg.		 4SA
  pkg.		 4SB
  pkg.
Differential, locking, heavy duty, rear Standard Standard Standard Standard
Skid Plate Package, includes 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 Available Available Available Available
StabiliTrak, stability control system with traction control Standard Standard Standard Standard
Steering, power Standard Standard Standard Standard
Suspension, front, coil-over-shock with stabilizer bar (1/2-ton models only) Standard Standard Standard Standard
Suspension, rear, multilink with coil springs (1/2-ton models only) Standard Standard Standard Standard
Suspension, front, independent with torsion bars (3/4-ton models only) Standard Standard Standard Standard
Suspension, rear, multistage leaf springs (3/4-ton models only) Standard Standard Standard Standard
Suspension Package, Premium Smooth Ride (1/2-ton models only) Standard Standard Standard Standard
Suspension Package, Handling/Trailering, Heavy Duty (3/4-ton models only) Standard Standard Standard Standard
Suspension Package, Autoride, bi-state variable shock dampening and rear air-assisted load-leveling, includes automatic air level control Not Available Not Available Available Available
Suspension Package, Off-Road Not Available Not Available Available Available
Transfer case, active, 2-speed with push-button controls (4WD models only) Standard Standard Standard Standard

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