USA Standard SL SPRING-SM Spartan Spring & Pin Kit

Incredibly durable and made from quality materials, the USA Standard SL SPRING-SM Spartan Spring & Pin Kit is the perfect addition to your vehicle. The Spartan locker's design does not use the thrust washers and has a revolutionary spring and pin design that makes installation convenient and easy. 

AMC Model 20

AMC Model 35 Rear

AMC Model 35 Rear, WJ Grand Cherokee

AMC Model 35 Reverse IFS Front

AMC Model 35 Standard Rotation Front

Chrysler 8.25", '05 & up (C213R/C213RE)

Chrysler 8.25", '75 & older

Chrysler 8.25", '76-'96

Chrysler 8.25", '97-'04

Dana "Super" 30 Ford Front

Dana "Super" 30, Jeep & Chrysler Front

Dana 30 Front, Crush Sleeve Design, Grand Cherokee

Dana 30 Front, Crush Sleeve Design, TJ Wrangler

Dana 30 Front, JK Non-Rubicon

Dana 30 Front, Reverse Rotation

Dana 30 Front, Standard Rotation

Dana 30 Rear

Dana 44 Front, Disconnect Design, '93 & older

Dana 44 Front, Disconnect Design, '94-'01

Dana 44 Front, Reverse Rotation, Straight Axle

Dana 44 Front, Standard Rotation

Dana 44 IFS Front, '92 & older

Dana 44 IFS Front, '93 & newer

Dana 44 Rear

Dana 44 Rear, JK Rubicon

Dana 44 Rear, Non-Rubicon JK

Dana 44 Reverse Rotation Front, JK Rubicon

Dana 44, 19 Spline

Dana 44, TJ Rubicon Wrangler front

Dana 44, TJ Rubicon Wrangler rear

Dana 44HD, '98 & Down

Dana 44HD, '99-'04 Grand Cherokee

Ford 8.8" - 31 Spline

Ford 8.8" 2010-2014 Mustang & Straight Axles w/ 3.250" OD Pinion Brg. 31 spline

Ford 8.8", '09-'14 F150 only - 31 spline

GM 12 Bolt Passenger Car

GM 12 Bolt Truck

GM 8.5" Front - 28 Spline

GM 8.5" Front - 30 Spline

GM 8.5" Rear - 28 Spline

GM 8.5" Rear - 30 Spline

GM 8.6" Rear, '99-'08

Nissan H233B Front

Nissan H233B Rear

Nissan H233BS Rear

Nissan M226 Rear '04-'07

Nissan M226 Rear '08 & Newer

Toyota 7.5" Rear

Toyota 7.5" Standard Rotation Front, 4 Cylinder

Toyota 7.5" Standard Rotation Front, V6

Toyota 8", w/o Air Operated Locker and OEM ring & pinion in '85 & down or aftermarket ring & pinion.

Toyota 8", w/o Air Operated Locker, in '86 & newer with OEM ring & pinion.

Toyota Landcruiser, '90 & older - 10 Spline

Toyota Landcruiser, '90 & older - 30 Spline

AMC AMX (1968 - 1970)

AMC Concord (1978 - 1983)

AMC Eagle (1979 - 1987)

AMC Hornet (1970 - 1977)

AMC Javelin (1967 - 1974)

AMC Matador (1971 - 1978)

AMC Pacer (1975 - 1980)

Buick Apollo (1973 - 1975)

Buick Electra (1971 - 1989)

Buick Rainier (2004 - 2007)

Buick Regal (1973 - 1987)

Buick Riviera (1975 - 1978)

Buick Skylark (1970 - 1979)

Buick Wildcat (1964 - 1972)

Cadillac Escalade (1999 - 2008)

Chevrolet / Chevy Avalanche 1500 (2002 - 2008)

Chevrolet / Chevy Bel Air (1964 - 1975)

Chevrolet / Chevy Biscayne (1964 - 1972)

Chevrolet / Chevy Blazer (1969 - 1994)

Chevrolet / Chevy C10 1/2 Ton (2WD) (1963 - 1987)

Chevrolet / Chevy C1500 1/2 Ton (2WD) (1988 - 1999)

Chevrolet / Chevy C2500 3/4 Ton (2WD) (1989 - 2000)

Chevrolet / Chevy Camaro (1967 - 1994)

Chevrolet / Chevy Caprice (1966 - 1996)

Chevrolet / Chevy Chevelle/ Malibu (1964 - 1973)

Chevrolet / Chevy Chevy II (1964 - 1968)

Chevrolet / Chevy Colorado (2004 - 2008)

Chevrolet / Chevy El Camino (1965 - 1976)

Chevrolet / Chevy Express Van 1500 1/2 Ton (1996 - 2008)

Chevrolet / Chevy G10 1/2 Ton (1967 - 1995)

Chevrolet / Chevy G20 3/4 Ton (1975 - 1995)

Chevrolet / Chevy Impala (1964 - 1996)

Chevrolet / Chevy K10/ K1500 1/2 Ton (4WD) (1960 - 1999)

Chevrolet / Chevy K20/K2500 3/4 Ton (4WD) (1962 - 1991)

Chevrolet / Chevy K30/ K3500 1 Ton (4WD) (1968 - 1980)

Chevrolet / Chevy K5 Blazer (4WD) (1969 - 1991)

Chevrolet / Chevy Malibu (1973 - 1983)

Chevrolet / Chevy Monte Carlo (1970 - 1978)

Chevrolet / Chevy Nomad (1968 - 1972)

Chevrolet / Chevy Nova (1964 - 1979)

Chevrolet / Chevy S10 Blazer / Pickup (1994 - 2005)

Chevrolet / Chevy Silverado 1500 1/2 Ton (1999 - 2008)

Chevrolet / Chevy SSR (2003 - 2006)

Chevrolet / Chevy Suburban 1/2 Ton (1960 - 2008)

Chevrolet / Chevy Suburban 3/4 Ton (1960 - 1990)

Chevrolet / Chevy Tahoe 1500 1/2 Ton (1995 - 2008)

Chevrolet / Chevy Trailblazer (1999 - 2008)

Chrysler Aspen (2006 - 2009)

Chrysler Fifth Avenue (1983 - 1989)

Chrysler Imperial (1971 - 1983)

Chrysler New Yorker (1968 - 1982)

Dodge A100 1/2 Ton (1964 - 1971)

Dodge B100 Dodge Van 1/2 Ton (1970 - 1980)

Dodge B150 Dodge Van 1/2 Ton (1981 - 1994)

Dodge B1500 Dodge Van 1/2 Ton (1995 - 1998)

Dodge B250 Dodge Van 3/4 Ton (1981 - 1994)

Dodge B2500 Dodge Van 3/4 Ton (1995 - 1998)

Dodge Charger (1968 - 1975)

Dodge Coronet (1963 - 1976)

Dodge D100 2wd 1/2 Ton (1970 - 1979)

Dodge D150 2wd 1/2 Ton (1976 - 1993)

Dodge D200 2wd 3/4 Ton (1970 - 1980)

Dodge Dakota (1987 - 2013)

Dodge Dart (1966 - 1976)

Dodge Diplomat (1977 - 1989)

Dodge Durango (1997 - 2009)

Dodge Magnum (1978 - 1983)

Dodge Monaco (1966 - 1979)

Dodge Nitro (2005 - 2011)

Dodge Polara (1960 - 1974)

Dodge Ram 1500 1/2 Ton (1994 - 2004)

Dodge Ram 2500 3/4 Ton (1994 - 2002)

Dodge Ram Charger (1974 - 1997)

Dodge Ram Van 1500 1/2 Ton (1970 - 2003)

Dodge Ram Van 2500 3/4 Ton (1971 - 2003)

Dodge W100 1/2 Ton 4x4 (1957 - 1989)

Dodge W150 1/2 Ton 4x4 (1977 - 1993)

Dodge W200 3/4 Ton 4x4 (1957 - 1984)

Dodge W250 3/4 Ton 4x4 (1981 - 1993)

Ford Aerostar (1985 - 1997)

Ford Bronco (1966 - 1996)

Ford Crown Victoria (2003 - 2011)

Ford E-100 1/2 Ton (1968 - 1983)

Ford E-150 1/2 Ton (1975 - 2014)

Ford E-250 3/4 Ton (1983 - 1998)

Ford Expedition (1997 - 2001)

Ford Explorer (1991 - 2013)

Ford Explorer Sport Trac (2001 - 2010)

Ford F-100 1/2 Ton (1948 - 1979)

Ford F-150 1/2 Ton (1966 - 2014)

Ford F-250 3/4 Ton (1959 - 1990)

Ford F-350 1 Ton (1978 - 1979)

Ford Granada (1979 - 1982)

Ford LTD (1979 - 1991)

Ford Mustang (1994 - 2014)

Ford Ranger (1990 - 2011)

Ford Thunderbird (1987 - 1988)

GMC C15/ C1500 1/2 Ton (2WD) (1963 - 1999)

GMC C25/ C2500 3/4 Ton (2WD) (1997 - 2000)

GMC Canyon (2004 - 2008)

GMC Envoy (2002 - 2008)

GMC G15/ G1500 1/2 Ton (1960 - 1995)

GMC G25/ G2500 3/4 Ton (1961 - 1995)

GMC K15/ K1500 1/2 Ton (4WD) (1960 - 1999)

GMC K25/ K2500 3/4 Ton (4WD) (1966 - 1991)

GMC S15 Jimmy / Pickup (1994 - 2005)

GMC Savana 1500 1/2 Ton (1996 - 2008)

GMC Savana 2500 3/4 Ton (1996 - 1998)

GMC Sierra 1500 1/2 Ton (1999 - 2008)

GMC Sierra Denali (1999 - 2008)

GMC Sonoma (1994 - 2004)

GMC Suburban 1/2 Ton (1960 - 2000)

GMC Suburban 3/4 Ton (1960 - 1990)

GMC Typhoon (1992 - 1993)

GMC Yukon 1500 1/2 Ton (1992 - 2008)

GMC Yukon XL 1500 1/2 Ton (2000 - 2008)

Hummer H1 (1992 - 2006)

Hummer H3 (2005 - 2008)

International Scout 800 (1967 - 1971)

International Scout II (1971 - 1980)

Isuzu Ascender (2003 - 2008)

Isuzu Rodeo (1993 - 1997)

Jaguar Mark I (1955 - 1959)

Jaguar Mark II (1950 - 1970)

Jeep Cherokee XJ (1984 - 2001)

Jeep Cherokee XJ Sport (1984 - 2001)

Jeep CJ5 (1960 - 1983)

Jeep CJ6 (1966 - 1975)

Jeep CJ7 (1976 - 1986)

Jeep CJ8 (1981 - 1986)

Jeep Comanche (1985 - 1992)

Jeep Commander XK (2005 - 2010)

Jeep Commando (1966 - 1973)

Jeep Compass (2007 - 2011)

Jeep Grand Cherokee (1992 - 2010)

Jeep Grand Wagoneer (1984 - 1993)

Jeep J10 (1967 - 1988)

Jeep Liberty (2002 - 2013)

Jeep Wagoneer (1971 - 1992)

Jeep Wrangler JK non-Rubicon (2007 - 2018)

Jeep Wrangler JK Rubicon (2007 - 2018)

Jeep Wrangler TJ non-Rubicon (1997 - 2006)

Jeep Wrangler TJ Rubicon (2003 - 2006)

Jeep Wrangler YJ (1987 - 1995)

Lincoln Aviator (2003 - 2005)

Lincoln Continental (1979 - 2000)

Lincoln Mark LT (2006 - 2008)

Lincoln Mark VI (1980 - 1983)

Lincoln Navigator (1998 - 2002)

Lincoln Town Car (2003 - 2011)

Mazda B3000 (1994 - 1997)

Mazda B4000 (1994 - 1997)

Mazda Navajo (1991 - 1994)

Mercury Capri (1979 - 1986)

Mercury Cougar (1979 - 1988)

Mercury Grand Marquis (2003 - 2011)

Mercury Marauder (2003 - 2004)

Mercury Mountaineer (1997 - 2010)

Nissan Frontier (1998 - 2014)

Nissan Hardbody (1986 - 1997)

Nissan Pathfinder (1986 - 2012)

Nissan Patrol (1985 - 2009)

Nissan Titan (2004 - 2016)

Nissan Xterra (2003 - 2016)

Oldsmobile Cutlass (1970 - 1987)

Oldsmobile Omega (1973 - 1979)

Plymouth Barracuda (1964 - 1974)

Plymouth Belvedere (1968 - 1970)

Plymouth Duster (1970 - 1976)

Plymouth Fury (1966 - 1978)

Plymouth GTX (1968 - 1971)

Plymouth Phoenix (1978 - 1979)

Plymouth Road Runner (1968 - 1980)

Plymouth Satellite (1965 - 1974)

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 (1969 - 1981)

Pontiac Ventura (1976 - 1977)

Saab 9-7x (2005 - 2008)

Toyota 4Runner (1984 - 1995)

Toyota FJ-40 Land Cruiser (1960 - 1984)

Toyota FJ-60 Land Cruiser (1981 - 1990)

Toyota Hilux Pickup (1979 - 1997)

Toyota Pickup (1977 - 1995)

Toyota T100 (1993 - 1998)

Toyota Tacoma (1995 - 2006)

Volvo 142 (1970 - 1981)

Volvo 144 (1970 - 1981)

Volvo 164 (1970 - 1981)

Volvo 240 (1973 - 1993)

Volvo 242 (1973 - 1993)

Volvo 245 (1975 - 1993)

Volvo 260 (1975 - 1993)

Volvo 265 (1975 - 1993)

Compatible Makes & Model Chart is for reference only. 

You must physically confirm the specific differential type in your vehicle for proper fitment as factory options may vary.