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
1969-1974	Ford	E-100 Econoline	Base
1969-1974	Ford	E-100 Econoline	Club Wagon
1957-1970	Ford	Fairlane	500
1966-1967	Ford	Fairlane	500XL
1957-1969	Ford	Fairlane	Base
1978	Ford	Fairmont	Base
1978	Ford	Fairmont	Futura
1960-1970	Ford	Falcon	Base
1964-1970	Ford	Falcon	Futura
1964-1965	Ford	Falcon	Futura Sprint
1961-1965	Ford	Falcon Sedan Delivery	Base
1972-1976	Ford	Gran Torino	Base
1973-1976	Ford	Gran Torino	Brougham
1974-1975	Ford	Gran Torino	Elite
1972-1975	Ford	Gran Torino	Sport
1972-1976	Ford	Gran Torino	Squire
1975-1979	Ford	Granada	Base
1978-1979	Ford	Granada	ESS
1975-1979	Ford	Granada	Ghia
1965-1978	Ford	LTD	Base
1970-1976	Ford	LTD	Brougham
1975-1978	Ford	LTD	Country Squire
1975-1978	Ford	LTD	Landau
1970-1977	Ford	Maverick	Base
1975-1977	Ford	Maverick	Grabber
1964-1973,1979	Ford	Mustang	Base
1969-1971	Ford	Mustang	Boss 302
1971-1972	Ford	Mustang	Boss 351
1969-1970	Ford	Mustang	Boss 429
1979	Ford	Mustang	Ghia
1970-1973	Ford	Mustang	Grande
1970-1973	Ford	Mustang	Mach 1
1965-1970	Ford	Mustang	Shelby GT-350
1966	Ford	Mustang	Shelby GT-350H
1967-1970	Ford	Mustang	Shelby GT-500
1968	Ford	Mustang	Shelby GT-500KR
1971-1980	Ford	Pinto	Base
1976-1980	Ford	Pinto	Pony
1976-1980	Ford	Pinto	Squire
1967-1979	Ford	Ranchero	500
1967	Ford	Ranchero	500 XL
1964-1971	Ford	Ranchero	Base
1966	Ford	Ranchero	Custom
1968-1979	Ford	Ranchero	GT
1970-1979	Ford	Ranchero	Squire
1963-1964	Ford	Sprint	Base
2005	Ford	Thunderbird	50th Anniversary Edition
2002-2005	Ford	Thunderbird	Base
2004	Ford	Thunderbird	Pacific Coast Roadster
1971	Ford	Torino	500
1968-1969,1971-1976	Ford	Torino	Base
1971	Ford	Torino	Brougham
1969,1971	Ford	Torino	Cobra
1968-1969,1971	Ford	Torino	GT
1969,1971	Ford	Torino	Squire
1971	Ford	Torino	Super Cobra Jet
1975,1977-1980	Mercury	Bobcat	Base
1976	Mercury	Bobcat	MPG Runabout
1976-1980	Mercury	Bobcat	Runabout
1976	Mercury	Bobcat	S Runabout
1976-1980	Mercury	Bobcat	Villager
1969-1977	Mercury	Capri	Base
1964-1965	Mercury	Comet	202
1964-1965	Mercury	Comet	404
1962-1969,1971-1977	Mercury	Comet	Base
1962-1963	Mercury	Comet	Custom
1962-1963	Mercury	Comet	S-22
1967-1970	Mercury	Cougar	Base
1969-1970	Mercury	Cougar	Boss 302
1969-1970	Mercury	Cougar	Boss 429
1969-1970	Mercury	Cougar	Cobra Jet
1967-1970	Mercury	Cougar	XR-7
1978	Mercury	Zephyr	Base
1978	Mercury	Zephyr	Z7