Ford 8 inch, 31 spline.
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 thats 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 Lockers larger teeth also resist breakage caused by shock-loading or catastrophic axle failure. Its a serious piece of mechanical engineering for serious driving conditions.
Fits Ford 8" with 31 spline axles.
Patented internal design reduces common locker failures.
8620 internals for added strength.
Assembled in the USA.
This unit uses carrier bearing and race part numbers LM102949 & LM102910.
* Ships from manufacturer. Allow a minimum of 1-8 weeks for delivery. Currently, however, some manufacturers are requiring much longer lead times. *
Ford Mustang Years:
1965 (65), 1966 (66), 1967 (67), 1968 (68), 1969 (69), 1970 (70), 1971 (71), 1972 (72), 1973 (73)
Above years shown are used for searches and are not application listings.
Mercury Cougar Years:
1967 (67), 1968 (68), 1969 (69), 1970 (70), 1971 (71), 1972 (72), 1973 (73)
Above years shown are used for searches and are not application listings.
Ford Falcon and Ranchero Years:
1960 (60), 1961 (61), 1962 (62), 1963 (63), 1964 (64), 1965 (65), 1966 (66), 1967 (67), 1968 (68), 1969 (69), 1970 (70)
Above years shown are used for searches and are not application listings.
Ford Fairlane and Ranchero Years:
1964 (64), 1965 (65), 1966 (66), 1967 (67), 1968 (68), 1969 (69), 1970 (70)
Above years shown are used for searches and are not application listings.
Ford Torino and Ranchero Years:
1968 (68), 1969 (69), 1970 (70), 1971 (71)
Above years shown are used for searches and are not application listings.
NPD Part Number : F-4204-8GLB Manufacturer Reference #'s: Yukon Gear YGLF8-31 (28007),
1965-1966 MUSTANG FORD 8 INCH REAR AXLE, REQS 4221-4 BEARINGS AND 4222-4 AND RACES NOT INCLUDED WITH DIFFERENTIAL OR KITS
1965-1966 MUSTANG FORD 8 INCH REAR AXLE, REQS 4221-4 BEARINGS AND 4222-4 AND RACES NOT INCLUDED WITH DIFFERENTIAL OR KITS
1967-1969 MUSTANG FORD 8 INCH REAR AXLE
1967-1969 MUSTANG FORD 8 INCH REAR AXLE
1967-1969 COUGAR FORD 8 INCH REAR AXLE
1967-1969 COUGAR FORD 8 INCH REAR AXLE
1964-1965 FALCON FORD 8 INCH REAR AXLE, REQS 4221-4 BEARINGS AND 4222-4 AND RACES NOT INCLUDED WITH DIFFERENTIAL OR KITS
1964-1965 FALCON FORD 8 INCH REAR AXLE, REQS 4221-4 BEARINGS AND 4222-4 AND RACES NOT INCLUDED WITH DIFFERENTIAL OR KITS
1966-1970 FALCON (BEFORE 1/1/70), FORD 8 INCH REAR AXLE
1966-1970 FALCON (BEFORE 1/1/70), FORD 8 INCH REAR AXLE
1964-1965 FAIRLANE FORD 8 INCH REAR AXLE, REQS 4221-4 BEARINGS AND 4222-4 AND RACES NOT INCLUDED WITH DIFFERENTIAL OR KITS
1964-1965 FAIRLANE FORD 8 INCH REAR AXLE, REQS 4221-4 BEARINGS AND 4222-4 AND RACES NOT INCLUDED WITH DIFFERENTIAL OR KITS
1970-1970 FALCON (FROM 1/1/70), FORD 8 INCH REAR AXLE
1970-1970 FALCON (FROM 1/1/70), FORD 8 INCH REAR AXLE
1968-1971 TORINO FORD 8 INCH REAR AXLE
1968-1971 TORINO FORD 8 INCH REAR AXLE
1966-1970 FAIRLANE FORD 8 INCH REAR AXLE
1966-1970 FAIRLANE FORD 8 INCH REAR AXLE
WARNING: This product can expose you to chemicals including lead and DEHP, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Submitted on May 18, 2022 by Matthias S.
YES I would recommend this product.
Quality
Value
This item is a "made to order" product and will ship directly from the manufacturer.
Please allow 1-8 weeks for delivery.
Please note that some manufacturers have longer lead times.