The Yukon Grizzly Locker is the ultimate in mechanical locking differentials for street, off-road, and drag racing. Grizzly Lockers provide 100 percent power to both tires, while still allowing for disengagement while negotiating turns.
Details:

• Fits GM 8.5 inch and 8.6 inch with 30 spline axles
• 2.73 and up ratio only
• Patented internal design reduces common locker failures
• 8620 internals for added strength
• 8620 Alloy Carrier
• Assembled in the USA
• 1 Year Warranty Against Manufacturer Defects
• Sold As Each

Technical Notes:

• 1.781 inch Large bearing journal design
• Requires HD bearings for GM 8.5 inch differentials, LM102949 and LM102911

Fits Vehicles:

• Buick Apollo (1973 - 1975)
• Buick Electra (1971 - 1989)
• Buick Rainier (2004 - 2007)
• Buick Regal (1973 - 1987)
• Buick Riviera (1975 - 1978)
• Buick Skylark (1970 - 1979)
• Cadillac Escalade (1999 - 2013)
• Chevrolet Avalanche 1500 (2002 - 2013)
• Chevrolet Bel Air (1970 - 1975)
• Chevrolet Blazer (1977 - 1994)
• Chevrolet C10 1/2 Ton (2WD) (1979 - 1987)
• Chevrolet C1500 1/2 Ton (2WD) (1988 - 1999)
• Chevrolet C2500 3/4 Ton (2WD) (1989 - 2000)
• Chevrolet Camaro (1970 - 1981)
• Chevrolet Caprice (1970 - 1996)
• Chevrolet Chevelle/Malibu (1973 - 1973)
• Chevrolet Colorado (2004 - 2013)
• Chevrolet El Camino (1971 - 1976)
• Chevrolet Express Van 1500 1/2 Ton (1996 - 2015)
• Chevrolet G10 1/2 Ton (1979 - 1995)
• Chevrolet G20 3/4 Ton (1975 - 1995)
• Chevrolet Impala (1971 - 1996)
• Chevrolet K10/K1500 1/2 Ton (4WD) (1977 - 1999)
• Chevrolet K20/K2500 3/4 Ton (4WD) (1977 - 1991)
• Chevrolet K5 Blazer (4WD) (1977 - 1991)
• Chevrolet Malibu (1973 - 1983)
• Chevrolet Monte Carlo (1973 - 1978)
• Chevrolet Nova (1970 - 1979)
• Chevrolet S10 Blazer / Pickup (1994 - 2005)
• Chevrolet Silverado 1500 1/2 Ton (1999 - 2017)
• Chevrolet SSR (2003 - 2006)
• Chevrolet Suburban 1/2 Ton (1977 - 2013)
• Chevrolet Suburban 3/4 Ton (1977 - 1990)
• Chevrolet Tahoe 1500 1/2 Ton (1995 - 2017)
• Chevrolet TrailBlazer (1999 - 2012)
• GMC C15/C1500 1/2 Ton (2WD) (1979 - 1999)
• GMC C25/C2500 3/4 Ton (2WD) (1997 - 2000)
• GMC Canyon (2004 - 2012)
• GMC Envoy (2002 - 2009)
• GMC G15/G1500 1/2 Ton (1979 - 1995)
• GMC G25/G2500 3/4 Ton (1978 - 1995)
• GMC K15/K1500 1/2 Ton (4WD) (1977 - 1999)
• GMC K25/K2500 3/4 Ton (4WD) (1977 - 1991)
• GMC S15 Jimmy / Pickup (1994 - 2005)
• GMC Savana 1500 1/2 Ton (1996 - 2013)
• GMC Savana 2500 3/4 Ton (1996 - 1998)
• GMC Sierra 1500 1/2 Ton (1999 - 2017)
• GMC Sierra Denali (1999 - 2013)
• GMC Sonoma (1994 - 2004)
• GMC Suburban 1/2 Ton (1977 - 2000)
• GMC Suburban 3/4 Ton (1977 - 1990)
• GMC Typhoon (1992 - 1993)
• GMC Yukon 1500 1/2 Ton (1992 - 2013)
• GMC Yukon XL 1500 1/2 Ton (2000 - 2013)
• Hummer H3 (2005 - 2011)
• Isuzu Ascender (2003 - 2008)
• Oldsmobile Cutlass (1970 - 1987)
• Oldsmobile Omega (1973 - 1979)
• Plymouth Phoenix (1978 - 1979)
• Pontiac Bonneville (1970 - 1986)
• Pontiac Catalina (1970 - 1981)
• Pontiac Firebird (1970 - 1981)
• Pontiac Grand Prix (1971 - 1987)
• Pontiac GTO (1970 - 1977)
• Pontiac LeMans (1971 - 1983)
• Pontiac Trans Am (1970 - 1981)
• Pontiac Ventura (1976 - 1977)
• Saab 9-7x (2005 - 2009)