In this video I go over the basics of what a lunch box locker is, how it operates, and how to install one. The locker I installed is a Spartan locker.
In this video I install a spartan locker and change the differential carrier bearings on a 1987 Suzuki samurai front axle.
Putting a locker in old Crusty, a 1992 Ford f150. Removing the spider gears cured the vibration from the rear end.