Tech editor Verne Simons talks about what a locking differential is and installs a Powertrax Lock Right.

This explainer video, put together by Auto Express, gives you a quick overview on the history of the limited-slip diff, how it works, and its performance benefits.

The Eaton (eaton.com) G80, also known as the Gov-Loc is a true automatic locker, not a limited-slip differential. It has been an available option on GM trucks for decades.

That all changed when Tesla pushed a pretty big software update to its only pickup truck, enabling said diff lock and adding more off-road features like Trail Assist.

News Watch This This Incredible Film From 1937 Teaches You How a Car’s Differential Works It may be 83 years old, but it's still spot-on. Jesus Garcia Published Aug 1, 2020 10:55 AM EDT ...

See The Tesla Cybertruck Put Its Diff Locker To Work Off-Road: ‘Much Better Than Expected’ Tesla’s angular pickup got a lot of flak in the past for underperforming off-road. Now, though ...