An extra 19 inches in length and 14 inches in wheelbase permit a longer 8-foot cargo bed on the 2006 GMC Sierra 1500 SLE1 Extended Cab LB. The rear-wheel-drive pickup seats six in two rows that split-fold, and the front bench can be replaced with bucket seats. The longer bed requires a 295-hp, 5.3-liter V8 that delivers 335 ft-lbs of torque at 4,000 RPM and can tow 8,000 pounds. It is paired with a 4-speed automatic. The other engine option is a 285-hp, 4.8-liter V8. Fuel economy sits in the mid-teens.
The pickup bed comes with tow hooks and the option to add a trailer hitch. The SLE1 comes standard with full power features, remote entry, cruise control, heated mirrors, leather trim, a CD player, front power outlet and cupholders, tilt and power steering, a security system, a temperature readout and compass, and intermittent wipers. Extended Cabs feature four doors, though the smaller rear doors do not open independently of the front doors. For those using the truck for comfort, along with utility, you can add a power driver's seat with memory settings, leather upholstery, a trip computer, wheel-mounted audio controls, and satellite radio.
On the safety front, the Sierra SLE1 Extended LB rates average, with standard 4-wheel ABS brakes and electronic brakeforce distribution, dual front airbags, 17-inch wheels with all-season tires (alloy available), and a front stabilizer bar. Side curtain bags are not offered, but traction control is, along with a locking rear differential, OnStar, mirrors with turn signals, and skid plates. Foglights, daytime running lights, and automatic headlights are all standard.