PULLING AHEAD
BIGGER. BOLDER. QUIETER. QUICKER. Smoother. Stronger. Smarter. Those are just a few of the words that came to mind when we wrapped up a couple of days behind the wheel of the ’20 GMC Sierra HDs, both gas and diesel. The four-wheel-drive Crew Cab 2500 and 3500 dualies we drove made it clear that GM’s halo brand on the truck side is determined to keep leading the way on the technology and towing fronts, all the while refining ride and handling.
As we’ve previously covered in detail about the new Chevrolet Silverado HDs, the heavy-duty ’20 GMC Sierra 2500/3500s share the same chassis, underpinnings, and drivetrain. For example, the new chassis of the Crew Cab with the standard bed now sports a wheelbase of 158.9 inches compared to the ’19’s 153.7-inch wheelbase. It’s also 1.5 inches wider with a 1-inch-wider rear track.
Along with the bigger chassis comes a bigger body and new bed box. The body is more than 10 inches longer and nearly 2 inches taller and wider; the hood sits higher; the grille is bolder; and the cab is more spacious—with 3 inches of added rear legroom and the most headroom in the heavy-duty pickup market.
The bed is more spacious, too. In fact, this marks the first time the HDs and 1500s have different beds, with the
