GM is considering adding a new 22.5-inch wheel-and-tire package for the 2019 Silverado Medium Duty Chassis Cab truck line. The larger rolling gear would essentially create a dock-height version of Chevy workhorse. This latest bit of info comes to us courtesy of a source familiar with future GM and Navistar Medium Duty truck plans, who spoke to GM Authority on the basis of anonymity.
The current, 2019 Silverado Medium Duty truck is equipped with wheels that measure 19.5 inches in diameter and 6.75 inches wide. The extra three inches of height provided by a 22.5-inch wheel would give the Silverado Medium Duty truck the elevation needed to properly load and unload at a warehouse dock without the use of a dock leveler, thus enhancing the line’s usability and flexibility. The additional height would also streamline jobs that require the use of a forklift.
This latest rumor follows hot on the heels of another inside scoop brought to you by GM Authority stating that the Silverado Medium Duty truck line will get a new gasoline engine option in the near future. The new engine will likely be a variant of the 6.6L V8 L8T that was introduced with the 2020 Chevrolet Silverado HD and 2020 GMC Sierra HD.
Output from the new gasoline motor is currently unknown. The new eight cylinder is SAE-certified at 401 horsepower and 464 pound-feet of torque when in the Silverado and Sierra 2500HD and 3500HD applications.
Developed in conjunction with Navistar, the current Chevrolet Silverado Medium Duty truck line includes the Silverado 4500HD (Class 4), Silverado 5500 HD (Class 5), and Silverado 6500HD (Class 6). Despite the “Medium Duty” nomenclature, these trucks slot above the current Silverado Heavy Duty line, which includes the Silverado 2500HD and Silverado 3500HD.
The Chevrolet Silverado Medium Duty truck line, also known as the Silverado Chassis Cab, is used primarily in commercial applications, such as emergency vehicles, dump trucks, and towing rigs. Currently, the only engine offered in the Silverado Medium Duty is GM’s 6.6L Duramax Turbo-Diesel V8 L5D that makes 350 horsepower and 700 pound-feet of torque.