2006 GMC Sierra 1500 SL2 4dr Crew Cab 4WD 5.8 ft. SB

The on-demand 4WD system in the 2006 GMC Sierra 1500 SL2 Crew Cab 4WD is an Autotrac setup, which automatically distributes torque where needed. It features high- and low-range gear settings for off-road performance and comes with automatic locking hubs, 8.4 inches of ground clearance, and off-road tires on its 17-inch wheels. Skid plates cost extra. Power comes from a 285-hp 4.8-liter V6 that offers 295 ft-lbs of torque at 4,000 RPM, matched to a 4-speed automatic. Towing capacity is 6,400 pounds. A 5.3-liter V8 or a 4.3-liter V6 is also available, with a 5-speed manual transmission.

The SL2 Crew Cab seats six in two full-size rows which both split-fold. Forty inches of front and rear legroom are passenger-friendly, though the cargo bed is only 5.8 feet long. It comes with tow hooks and an optional trailer hitch. Upgraded cloth seats, full power features, and remote entry distinguish it from the SL1. Other standard equipment includes cruise control, a CD player, tilt and power steering, a tachometer, and intermittent wipers. Satellite radio is optional. Chrome bumpers and a chrome grille boost the star power of the Sierra.

Safety features are few, and the Sierra ranks only average in crash tests. Dual front airbags with passenger deactivation, 4-wheel ABS with electronic brakeforce distribution, a front stabilizer bar, and automatic headlights are about it. Traction control and side curtain airbags are not offered. The pickup employs a short and long arm front independent and solid live axle rear suspension.