Whats New for the 2006 HUMMER H1 Alpha?
Powered by GM’s Duramax 6600 turbodiesel engine, the 2006 Hummer H1 Alpha generates an impressive 300 horsepower at 3,000 rpm and an incredible 520 lb.-ft. of torque at 1,500 rpm. A new Allison 1000 five-speed automatic transmission supplies the H1 with a tow/haul mode, a 2,000-pound bump in Gross Combined Weight Rating (GCWR) to 17,300 pounds, improved drivetrain braking, and a 22-percent better crawl ratio of 45:1 for the really tough stuff. To make room for the new motor, the 2006 Hummer H1 Alpha’s body sits two inches higher than before. All H1 Alphas get bigger brake rotors; upgraded axle half-shafts; tougher steering gear; and redesigned wheel hubs with a helical-cut gearset that improves gear engagement while reducing driveline noise and rocking motions when slowing down or stopping. To identify the 2006 Hummer H1 Alpha, look for this model’s brighter finish wheels and special “Duramax” and “Alpha” badges on the body. Like last year’s H1, the Alpha rides on 37-inch Goodyear GSA
