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.

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.

A locking differential is a must-have if you plan to take your car or truck way off the road. Why should you avoid leaving the lock on while on the road?

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 ...

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.

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 ...