Everything about the Yukon Grizzly Locker is hardcore, its casing and gears, its advanced gear tooth design, and its impact on traction and performance. The Yukon Grizzly Locker is a mechanical positive-locking differential that’s engineered for rock crawling, serious trail running, off-road racing, and drag racing. The unit provides 100% power to both tires, while still allowing for disengagement while negotiating turns. The Yukon Grizzly Locker is a patented design that features innovations that make it tougher than the competition. Its inner clutch teeth have a larger radius at the base, which offers up to 350% greater strength versus back-cut designs. The Grizzly Locker’s larger teeth also resist breakage caused by shock-loading or catastrophic axle failure. It’s a serious piece of mechanical engineering for serious driving conditions.
Installation Instructions
Installation Instructions


This Part Fits:

Year	Make	Model	Submodel
2003-2005	Ford	Excursion	Eddie Bauer
2000-2005	Ford	Excursion	Limited
2004-2005	Ford	Excursion	XLS
2000-2005	Ford	Excursion	XLT
1983-1986,1997-1999	Ford	F-250	Base
1980-1982,1987-1992	Ford	F-250	Custom
1995-1996	Ford	F-250	Eddie Bauer
1997-1999	Ford	F-250	Lariat
1980-1981	Ford	F-250	Ranger
1980-1981	Ford	F-250	Ranger Lariat
1980-1981	Ford	F-250	Ranger XLT
1995-1996	Ford	F-250	Special
1982-1999	Ford	F-250	XL
1982-1983	Ford	F-250	XLS
1983-1984,1993-1999	Ford	F-250	XLT
1982,1985-1992	Ford	F-250	XLT Lariat
1999-2002	Ford	F-250 Super Duty	Lariat
1999-2002	Ford	F-250 Super Duty	XL
1999-2002	Ford	F-250 Super Duty	XLT
1983-1986	Ford	F-350	Base
1980-1982	Ford	F-350	Custom
1980-1981	Ford	F-350	Ranger
1980-1981	Ford	F-350	Ranger Lariat
1980-1981	Ford	F-350	Ranger XLT
1982-1986	Ford	F-350	XL
1982-1983	Ford	F-350	XLS
1983-1984	Ford	F-350	XLT
1982,1985-1986	Ford	F-350	XLT Lariat
1999-2002	Ford	F-350 Super Duty	Lariat
1999-2002	Ford	F-350 Super Duty	XL
1999-2002	Ford	F-350 Super Duty	XLT