2020 Silverado HD Equipped with Allison Transmission
Chevrolet will offer a 10-speed, fully automatic Allison transmission in its 2020 Silverado 2500/3500 HD trucks. The 2020 Silverado HD will debut in February.

The 6-speed fully automatic transmission, manufactured by Allison Transmission, is the exclusive, commercial-duty transmission for Silverado chassis cab medium-duty commercial trucks.
Photo: Chevrolet
Chevrolet will offer a 10-speed, fully automatic Allison transmission in its 2020 Silverado 2500/3500 HD trucks. The 2020 Silverado HD will debut in February.
“We built the new 2020 Silverado HD with more differentiation than ever before, to meet the needs and priorities of our customers,” said Jaclyn McQuaid, chief engineer, Silverado HD. “By offering the new Allison 10-speed, tested and validated in partnership with Allison Transmission, each transmission will deliver the legendary quality and durability that customers have come to expect.
The Allison-branded automatic transmission, manufactured by General Motors, combines enhanced performance and fuel economy, greater operational flexibility, and improved driver comfort and control, with an industry-leading reputation for uptime and reliability, according to the companies. The Allison 10-speed transmission will be coupled with Chevrolet's Duramax diesel engine.
"We are pleased that General Motors continues to expand the range of Allison products available for their customers with the 2020 Silverado HD," said Randy Kirk, senior vice president of product engineering and program management for Allison Transmission. "Allison Transmission and GM have a long history of collaboration and innovation."
Recently, Allison began producing the 6-speed fully automatic transmission for Chevrolet’s Silverado 4500 HD, 5500 HD, and 6500 HD medium-duty trucks.
More Vehicle Research

Rivian Layoffs Will Not Impact Production Workers, R2 Has Launched
Rivian announces layoffs, but production is not expected to be impacted as the electric vehicle manufacturer starts R2 SUV deliveries to customers. The company’s 2026 first-quarter net profit was down $87 million from the same quarter in 2025.
Read More →
Chevrolet Reveals Fleet-Focused 2027 Silverado 1500 With New V8 Engines and Updated Technology
The 2027 Chevrolet Silverado 1500 adds new V8 engines, updated technology, and a redesigned Work Truck model aimed at commercial and fleet customers.
Read More →
Clinton Aluminum Finds Success with Mack MD7, Plans All-Mack Fleet
After finding success with 17 Mack MD7 medium-duty leased trucks, Clinton Aluminum has now decided to convert its 34-vehicle fleet to an all-Mack fleet. Here is why.
Read More →
Toyota Alabama Celebrates 25 Years of Producing Tundra and Tacoma Powertrains
Toyota Alabama celebrates 25 years of producing Tundra and Tacoma powertrain components, surpassing 11 million engines built in Huntsville.
Read More →Heavy-Duty Performance: Ram 2500 Walkthrough
The Ram Heavy Duty lineup is designed to support a wide range of fleet, utility, construction, and vocational applications while providing the technology operators expect from a modern truck. This walkaround video will explain the Ram 2500’s features and capabilities.
Read More →
All-New Mack Granite Cab Designed from Driver Input
Mack Trucks’ all-new Mack Granite will be available later in 2026 and features a driver-centric interior that was developed with input from more than 30 professional drivers through an unbiased clinic at Virginia Tech.
Read More →
Nissan Frontier Sport Edition: Off-Road Ready with Upgrades Available
Nissan’s 2027 Frontier Sport Edition gives customers off-road features, including all-terrain tires, an aluminum skid plate, fog lamps, and front accent lighting. Like every Frontier, it comes standard with Nissan's 3.8-liter V6.
Read More →
Hand-Painted Mack LR Models Unveiled During Trucks of Art Program in New York City
The New York City Department of Sanitation, in collaboration with its nonprofit partner the Sanitation Foundation, unveiled five new hand-painted Mack LR refuse vehicles during New York City’s Trucks of Art program.
Read More →
Ford Pro Extends 5-Year/100,000-Mile Limited Powertrain Warranty to Ranger, Maverick and E-Transit
Ford Pro expands its 5-year/100,000-mile Limited Powertrain Warranty to the 2027 Ranger and E-Transit for eligible fleet buyers.
Read More →Are You Tracking Your Fleet's True Total Cost of Ownership?
Bobit Business Media surveyed 190 fleet professionals and found that while most fleets are tracking costs, fragmented systems and data gaps are keeping true TCO visibility out of reach. With rising pressure to control spend in an increasingly volatile environment, the gap between what fleets think they know and what the data actually shows is wider than you might expect. See how your peers are managing costs today and where the industry still has room to improve.
Read More →
