New Frames

In the quest to comprehensively redesign the Silverado HD Chassis to improve durability and ride, while also supporting increased capability, engineers developed 18 all-new, fully boxed frame assemblies. The frames have increased cross sections and use more high-strength steel for greater durability, higher towing capacity and improved ride and handling; the front sections are hydroformed.

The bending and beaming stiffness of the frames is increased to 92%, and 20% respectively, with the fully boxed sections enhancing torsional stiffness by a factor of five.  Also, larger engine and transmission mounts, coupled with a 125% stiffer front frame structure, provide greater vibration control, while hydraulic body mounts are incorporated under the cab section on extended and crewb cab models for a more isolated feel on the inside. Also, the frame mounted hitch for conventional trailering is stronger, with a box-tube design. It supports up to 7,727kg (17,000lbs).