The 2007 GMC Truck Sierra Classic 3500 Extended Cab 2WD is a 4-door, up to 6-passenger full size pickup, available in 10 trims, ranging from the Work Truck Long Box SRW to the SLT Long Box DRW.

Upon introduction, both trims are equipped with a standard 6.0-liter, V8, 300-horsepower engine. A 4-speed automatic transmission with overdrive is standard.

The 2007 GMC Truck Sierra Classic 3500 Extended Cab 2WD is a carryover from 2006.