Two trim levels of the new 2020 Chevy Silverado HD were just unveiled earlier this week (LT and High Country), but one of the more interesting parts of the debut was the announcement of an “all-new Allison 10-speed” transmission.
The new 2020 Chevy HD truck will make a public debut in February 2019 and will go on sale in “mid-2019”.
The press release says that the new “Allison” 10-speed automatic transmission will be mated to the turbo-diesel engine that is rated at 910 lb-ft of torque.
Allison Transmission is a company known for heavy-duty vehicle transmissions. You can find various versions of Allison transmission in military trucks, school buses, semi trucks of many kinds, and GM’s pickup trucks. The Allison 1000 6-speed transmission has been in GM’s 2500 & 3500 trucks since 2006, but that’s changing for the upcoming 2020 trucks.
Allison Transmission was spun off into its own company in 2007, when General Motor sold the company. The company built the 6-speed automatic transmission at the GM plant in Baltimore. This plant is said to be closing in April of 2019.
Allison Transmission published a press release on December 4th, 2018 that states the following about the new 10-speed automatic transmission, “The Allison branded automatic transmission, manufactured by General Motors, …” The press release also mentions “new Allison 10-speed, tested and validated in partnership with Allison Transmission”.
TFLtruck acquired additional information from an inside source knowledgeable in the matter that the new 10-speed automatic transmission for the 2020 HD trucks does not have anything in common with the 10-speed automatic that is currently used in GM’s 2019 half-ton trucks. Also, the 10-speed HD automatic is in fact a GM design that Allison Transmission validated by putting it through their series of tests.
Please keep in mind that General Motors and Allison company have been together from 1929 to 2007. Their development and products have been intertwined for decades. We are looking forward to testing the new 2020 Chevy and GMC HD trucks and the 10-speed automatic in the coming months and years.