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The Yukon Grizzly Locker is a mechanical positive-locking differential built for aggressive off-road and racing use, supplying 100% power to both tires while allowing disengagement on turns. Its patented internal geometry increases tooth strength and resists shock breakage. This configuration fits Dana Spicer 60 with 40 splines, is specified for 4.10 and down ratios, and is assembled in the USA with 8620 internals.
Yukon Gear Grizzly Locker For Dana 60 / 4.10 & Down / 40 Spline
