Eaton Posi Differential 30 Spline 1.32in Axle Shaft Diameter 2.73 & Up Ratio Fr/Rr 8.5in / Rr 8.6in

The Eaton Posi limited-slip differential prevents wheel slip before it can get started. To do that, carbon disc clutch packs, preloaded by a central spring assembly, are located behind each differential side gear. When torque input increases the clamping load on the clutch packs increases. That causes the chatter-free clutch packs to grab and transfer power to the other wheel. Muscle cars, hot rods and mild off-road vehicles should look to Eatonss limited-slip differential for their traction answers. And the fact is, Eatons Posi units are virtually bullet proof.This Part Fits: Year Make Model Submodel 1973-1975 Buick Apollo Base 1975 Buick Apollo SR 1988-1996 Buick Century Custom 1988-1989 Buick Century Estate Wagon 1988-1993,1996 Buick Century Limited 1991-1996 Buick Century Special 1991-1996 Buick Commercial Chassis Base 1988-1989 Buick Electra Estate Wagon 1988-1990 Buick Electra Limited 1988-1990 Buick Electra Park Avenue 1989-1990 Buick Electra Park Avenue Ultra 1988-1990 Buick Electra T-Type 1988-1991 Buick LeSabre Base 1988-1996 Buick LeSabre Custom 1988-1990 Buick LeSabre Estate Wagon 1988-1996 Buick LeSabre Limited 1991-1996 Buick Park Avenue Base 1991-1996 Buick Park Avenue Ultra 2004-2007 Buick Rainier CXL 2004-2005 Buick Rainier CXL Plus 1988-1991 Buick Reatta Base 1973-1987 Buick Regal Base 1988-1996 Buick Regal Custom 1982-1983 Buick Regal Estate Wagon 1987 Buick Regal GNX 1989-1996 Buick Regal Gran Sport 1984-1987 Buick Regal Grand National 1978-1996 Buick Regal Limited 1982 Buick Regal Limited Turbo 1996 Buick Regal Olympic Gold Edition 1978-1982 Buick Regal Sport 1976-1977 Buick Regal SR 1983-1986 Buick Regal T-Type 1975-1978,1995-1996 Buick Riviera Base 1975 Buick Riviera GS 1988-1993 Buick Riviera Luxury 1978 Buick Riviera LXXV Anniversary Edition 1976 Buick Riviera Sport 1976 Buick Riviera SR 1988-1989 Buick Riviera T-Type 1992-1995 Buick Roadmaster Base 1996 Buick Roadmaster Collector’s Edition 1991-1995 Buick Roadmaster Estate Wagon 1996 Buick Roadmaster Estate Wagon Collector’s Edition 1992-1995 Buick Roadmaster Limited 1996 Buick Roadmaster Limited Collector’s Edition 1988-1989 Buick Skyhawk Custom 1988-1989 Buick Skyhawk SE 1970,1972 Buick Skylark 350 1970-1972,1975-1979,1990-1991 Buick Skylark Base 1970-1972,1978-1979,1988-1996 Buick Skylark Custom 1990-1996 Buick Skylark Gran Sport 1988-1989,1993-1996 Buick Skylark Limited 1990-1991 Buick Skylark Luxury Edition 1996 Buick Skylark Olympic Gold Edition 1976-1979 Buick Skylark S 1978 Buick Skylark Sport 1975-1977 Buick Skylark SR 1999-2000,2002-2013 Cadillac Escalade Base 2009-2013 Cadillac Escalade Hybrid 2010-2013 Cadillac Escalade Hybrid Platinum 2011-2013 Cadillac Escalade Luxury 2008-2013 Cadillac Escalade Platinum 2011-2013 Cadillac Escalade Premium 2003-2013 Cadillac Escalade ESV Base 2011-2013 Cadillac Escalade ESV Luxury 2008-2013 Cadillac Escalade ESV Platinum 2011-2013 Cadillac Escalade ESV Premium 2002-2009 Cadillac Escalade EXT Base 2013 Chevrolet Avalanche Black Diamond LS 2013 Chevrolet Avalanche Black Diamond LT 2013 Chevrolet Avalanche Black Diamond LTZ 2007-2012 Chevrolet Avalanche LS 2007-2012 Chevrolet Avalanche LT 2007-2012 Chevrolet Avalanche LTZ 2002-2005 Chevrolet Avalanche 1500 Base 2005-2006 Chevrolet Avalanche 1500 LS 2005-2006 Chevrolet Avalanche 1500 LT 2002-2003 Chevrolet Avalanche 1500 North Face 2002-2003 Chevrolet Avalanche 1500 On Road Edition 2003 Chevrolet Avalanche 1500 WBH 2004-2006 Chevrolet Avalanche 1500 Z66 2002-2006 Chevrolet Avalanche 1500 Z71 1988-1996 Chevrolet Beretta Base 1989-1993 Chevrolet Beretta GT 1990-1993 Chevrolet Beretta GTZ 1990 Chevrolet Beretta Indianapolis 500 Pace Car 1994-1996 Chevrolet Beretta Z26 1995-1999 Chevrolet Blazer Base 1996-2000 Chevrolet Blazer LS 1995-2000 Chevrolet Blazer LT 1999-2000 Chevrolet Blazer Trailblazer 1990-1993 Chevrolet C1500 454 SS 1994-1997 Chevrolet C1500 Base 1988-1998 Chevrolet C1500 Cheyenne 1988-1992 Chevrolet C1500 Scottsdale 1988-1998 Chevrolet C1500 Silverado 1990-1998 Chevrolet C1500 WT 1996 Chevrolet C1500 Suburban Base 1996 Chevrolet C1500 Suburban LS 1996 Chevrolet C1500 Suburban LT 1988,1993-1996 Chevrolet Camaro Base 1993 Chevrolet Camaro Indianapolis 500 Pace Car 1988-1990 Chevrolet Camaro Iroc-Z 1989-1992,1996 Chevrolet Camaro RS 1992 Chevrolet Camaro RS Heritage Edition 1991-1996 Chevrolet Camaro Z28 1992 Chevrolet Camaro Z28 Heritage Edition 1988-1992 Chevrolet Caprice Base 1988-1996 Chevrolet Caprice Classic 1988-1990 Chevrolet Caprice Classic Brougham 1993-1994 Chevrolet Caprice Classic LS 1988-1990 Chevrolet Caprice Classic LS Brougham 1991-1993 Chevrolet Caprice Classic LTZ 1988-1990,1995-1996 Chevrolet Cavalier Base 1995-1996 Chevrolet Cavalier LS 1988-1994 Chevrolet Cavalier RS 1988-1994 Chevrolet Cavalier VL 1988-1996 Chevrolet Cavalier Z24 1988-1990 Chevrolet Celebrity Base 1989 Chevrolet Celebrity CL 1988-1990 Chevrolet Celebrity Eurosport 2004 Chevrolet Colorado Base 2004,2006-2008 Chevrolet Colorado LS 2006-2012 Chevrolet Colorado LT 2004-2005 Chevrolet Colorado Sport 2004-2005 Chevrolet Colorado Sport LS 2006-2012 Chevrolet Colorado WT 2004-2005 Chevrolet Colorado Z71 2004-2005 Chevrolet Colorado Z71 LS 2004-2005 Chevrolet Colorado Z85 2004-2005 Chevrolet Colorado Z85 LS 1988-1989,1994-1996 Chevrolet Corsica Base 1988,1990-1993 Chevrolet Corsica LT 1989-1990,1992 Chevrolet Corsica LTZ 1988 Chevrolet Corvette 35th Anniversary Edition 1993 Chevrolet Corvette 40th Anniversary Edition 1988-1996 Chevrolet Corvette Base 1996 Chevrolet Corvette Collector’s Edition 1996 Chevrolet Corvette Grand Sport 1995 Chevrolet Corvette Indianapolis 500 Pace Car 1990-1995 Chevrolet Corvette ZR-1 1996-2013 Chevrolet Express 1500 Base 1996-2013 Chevrolet Express 1500 LS 2001-2002,2006-2013 Chevrolet Express 1500 LT 1988-1995 Chevrolet G10 Beauville 1988-1995 Chevrolet G10 Chevy Van 1988-1995 Chevrolet G10 Sportvan 1988-1995 Chevrolet G20 Beauville 1988-1995 Chevrolet G20 Chevy Van 1988-1995 Chevrolet G20 Sportvan 1994-1996 Chevrolet Impala SS 1994-1997 Chevrolet K1500 Base 1988-1998 Chevrolet K1500 Cheyenne 1988-1992 Chevrolet K1500 Scottsdale 1988-1998 Chevrolet K1500 Silverado 1991 Chevrolet K1500 Sport 1990-1998 Chevrolet K1500 WT 1996 Chevrolet K1500 Suburban Base 1996 Chevrolet K1500 Suburban LS 1996 Chevrolet K1500 Suburban LT 1988-1991 Chevrolet K2500 Cheyenne 1988-1991 Chevrolet K2500 Scottsdale 1988-1991 Chevrolet K2500 Silverado 1977-1980 Chevrolet K5 Blazer Cheyenne 1981-1986 Chevrolet K5 Blazer Custom 1977-1980 Chevrolet K5 Blazer Custom Deluxe 1981 Chevrolet K5 Blazer Deluxe 1984 Chevrolet K5 Blazer Scottsdale 1978,1980-1986 Chevrolet K5 Blazer Silverado 1990-1996 Chevrolet Lumina Base 1990-1994 Chevrolet Lumina Euro 1995-1996 Chevrolet Lumina LS 1991-1994 Chevrolet Lumina Z34 1988 Chevrolet Monte Carlo Base 1988,1995-1996 Chevrolet Monte Carlo LS 1988 Chevrolet Monte Carlo SS 1995-1996 Chevrolet Monte Carlo Z34 1988 Chevrolet Nova Base 1988 Chevrolet Nova CL 1988 Chevrolet Nova Twin Cam 1988 Chevrolet R10 Suburban Scottsdale 1988 Chevrolet R10 Suburban Silverado 1989-1991 Chevrolet R1500 Suburban Scottsdale 1989-1991 Chevrolet R1500 Suburban Silverado 1994 Chevrolet S10 Blazer Base 1994 Chevrolet S10 Blazer LT 1994 Chevrolet S10 Blazer Tahoe 1994 Chevrolet S10 Blazer Tahoe LT 1999-2005 Chevrolet Silverado 1500 Base 2016-2019 Chevrolet Silverado 1500 Custom 2019 Chevrolet Silverado 1500 Custom Trail Boss 2014-2019 Chevrolet Silverado 1500 High Country 2004-2006,2009-2013 Chevrolet Silverado 1500 Hybrid 1999-2013,2015-2018 Chevrolet Silverado 1500 LS 1999-2019 Chevrolet Silverado 1500 LT 2019 Chevrolet Silverado 1500 LT Trail Boss 2007-2019 Chevrolet Silverado 1500 LTZ 2019 Chevrolet Silverado 1500 RST 2003-2006 Chevrolet Silverado 1500 SS