The Yukon Grizzly Locker provides mechanical positive-locking differential action for intense driving conditions, supplying 100% power to both wheels while still allowing disengagement in turns. Its patented internal tooth design and robust internals help resist shock failures. This model fits Ford 8.8" differentials with 31 splines, includes 8620 internals for added strength, and is assembled in the USA.
Yukon Gear Grizzly Locker / Ford 8.8in w/ 31 Splines