The H3T’s frame and suspension system are based on a stretched version of the H3 SUV’s chassis and suspension – the same race-proven design found on Baja 1000-winning stock-class race trucks. The wheelbase measures 134.2 inches (3,409 mm) – 22 inches (86 mm) longer than the H3 SUV. A ladder-type frame is the truck’s foundation and it has a modular, three-piece design that incorporates fully boxed components for outstanding strength and stiffness. An independent SLA torsion bar front suspension and multileaf Hotchkiss-type rear suspension are used. There are two suspension packages available:
To support the torque output of the 5.3L V-8, the H3T Alpha’s front differential case is made of cast iron; other models feature an aluminum case. V-8-powered vehicles also receive higher torsion bar rates to support the increased mass and specific shock valving. The chassis and suspensions were validated in real-world testing on off-road trails in Moab, Utah; the Rubicon Trail in California, and other challenging off-road venues.
The H3T lives up to HUMMER’s legendary off-road reputation, with best-in-class extreme off-road capability. Highlights include:
“For most lifestyles, there’s almost nothing the H3T can’t handle,” said Walsh. “It’s a truck with HUMMER’s immutable capability.”Complementing the features that enable the H3T’s impressive off-road prowess is a host of first-class protective elements, including four standard skid shields: a front shield, an oil-pan shield/front-axle shield, a transfer case shield and a fuel tank shield.
Continuing HUMMER’s tradition of delivering a broad range of safety systems, the H3T offers the following standard features:
The H3T was also designed for vehicle-to-vehicle compatibility in the event of a crash and its rigid body structure provides good passenger protection.