Yukon’s Grizzly Locker is a mechanical positive-locking differential intended for demanding off-road and racing conditions, delivering full power to both wheels while permitting disengagement in turns. Its patented internal geometry and larger clutch tooth radius increase strength. This model fits Dana Spicer 30 with 30 splines, is specified for 3.73 and up ratios, and includes 8620 internals; assembled in the USA.
Yukon Gear Grizzly Locker / Dana 30 / 30 Spline / 3.73+