Here’s our first look at the upcoming 2020 GM HD Chassis Cab truck. Recently spied undergoing testing, the Heavy Duty flatbed prototype furnishes us with a new look at the rear suspension set-up as well as the positioning of the DEF tank for the Duramax diesel engine.
On the current K2 platform GM 2500HD and 3500HD trucks equipped with the 6.6L Duramax motor, the DEF tank is mounted in a way that’s visible on the front passenger side of the frame. This placement has drawn heavy criticism as being unsightly, awkward, and downright ugly.
By contrast, the 2020 GM Heavy Duty trucks, which will ride on the new GM T1 platform, will relocate the DEF tank right behind the rear wall of the cab on the driver’s side of the truck, in close proximity to the DEF additive cap. The new location and mounting gives the DEF reservoir a significantly more disguised and integrated appearance.
The spy shots also give us a better look at the suspension setup of the new GM 2020 HD trucks. Leaf springs are still in favor – which is no surprise given their useful durability in chassis cab trucks. Outside of that, it’s difficult to ascertain more details about the rear suspenders.
Look for GM HD trucks, including the Chevrolet Silverado 2500HD and 3500HD, to bow in calendar year 2019 as 2020 model year vehicles. The vehicles will slot under the recently-introduced Chevrolet Silverado Medium Duty (Silverado 4500HD, Silverado 5500HD and Silverado 6500HD) trucks. GMC will offer the Sierra 2500HD and 3500HD, but it’s unclear whether Big Red will also get a chassis cab variant given the brand’s continuous push into retail and away from commercial sectors.