Closer look at the new Allison 10-speed transmission available in 2020 Silverado HD

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Updated Feb 8, 2019

GM and Allison teamed up to develop the new Allison 10L1000 10-speed automatic transmission which is available in the 2020 Silverado HD.

To learn more about the transmission, a segment exclusive, we talked to David Ames, assistant chief engineer of powertrains at GM.

“The 10-speed really gets you in control,” Ames explain in the video below. “Everything feels better. It’s super smooth shifting.”

Should the need arise, all 910 pound-feet of torque (available when paired up with the 6.6-liter Duramax diesel) can be accessed in first gear.