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
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
1988-1991	Buick	Reatta	Base
1988-1996	Buick	Regal	Custom
1989-1996	Buick	Regal	Gran Sport
1988-1996	Buick	Regal	Limited
1996	Buick	Regal	Olympic Gold Edition
1995-1996	Buick	Riviera	Base
1988-1993	Buick	Riviera	Luxury
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
1990-1991	Buick	Skylark	Base
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
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
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
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
1994-1996	Chevrolet	Impala	SS
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
1999-2005	Chevrolet	Silverado 1500	Base
2004-2006,2009-2013	Chevrolet	Silverado 1500	Hybrid
1999-2006,2008-2013	Chevrolet	Silverado 1500	LS
1999-2013	Chevrolet	Silverado 1500	LT
2007-2013	Chevrolet	Silverado 1500	LTZ
2003-2006	Chevrolet	Silverado 1500	SS
2002-2004,2006-2013	Chevrolet	Silverado 1500	WT
2010-2013	Chevrolet	Silverado 1500	XFE
2004	Chevrolet	Silverado 1500	Z71
2007	Chevrolet	Silverado 1500 Classic	Hybrid
2007	Chevrolet	Silverado 1500 Classic	LS
2007	Chevrolet	Silverado 1500 Classic	LT
2007	Chevrolet	Silverado 1500 Classic	SS
2007	Chevrolet	Silverado 1500 Classic	WT
2005	Chevrolet	Silverado 1500 HD	Base
2001-2003,2005	Chevrolet	Silverado 1500 HD	LS
2001-2003,2005-2006	Chevrolet	Silverado 1500 HD	LT
2007	Chevrolet	Silverado 1500 HD Classic	LT
1999-2004	Chevrolet	Silverado 2500	Base
1999-2004	Chevrolet	Silverado 2500	LS
1999-2004	Chevrolet	Silverado 2500	LT
2004	Chevrolet	Silverado 2500	WT
2001-2005	Chevrolet	Silverado 2500 HD	Base
2001-2006	Chevrolet	Silverado 2500 HD	LS
2001-2013	Chevrolet	Silverado 2500 HD	LT
2007-2013	Chevrolet	Silverado 2500 HD	LTZ
2003-2013	Chevrolet	Silverado 2500 HD	WT
2007	Chevrolet	Silverado 2500 HD Classic	LS
2007	Chevrolet	Silverado 2500 HD Classic	LT
2007	Chevrolet	Silverado 2500 HD Classic	WT
1988	Chevrolet	Spectrum	Base
1988	Chevrolet	Spectrum	CL
1988	Chevrolet	Spectrum	CL Plus
1988	Chevrolet	Spectrum	Express
1988	Chevrolet	Spectrum	Turbo
1988	Chevrolet	Sprint	Base
1988	Chevrolet	Sprint	ER
1988	Chevrolet	Sprint	Metro
1988	Chevrolet	Sprint	Turbo
2002-2005	GMC	Sierra 1500	Base
2002-2013	GMC	Sierra 1500	Denali
2002	GMC	Sierra 1500	HT
2005-2006,2009-2013	GMC	Sierra 1500	Hybrid
1999-2003,2006,2008-2013	GMC	Sierra 1500	SL
1999-2013	GMC	Sierra 1500	SLE
1999-2013	GMC	Sierra 1500	SLT
2002-2013	GMC	Sierra 1500	WT
2010-2013	GMC	Sierra 1500	XFE
2007	GMC	Sierra 1500 Classic	Denali
2007	GMC	Sierra 1500 Classic	Hybrid
2007	GMC	Sierra 1500 Classic	SL
2007	GMC	Sierra 1500 Classic	SLE
2007	GMC	Sierra 1500 Classic	SLT
2007	GMC	Sierra 1500 Classic	WT
2001-2003,2005-2006	GMC	Sierra 1500 HD	SLE
2001-2003,2005-2006	GMC	Sierra 1500 HD	SLT
2007	GMC	Sierra 1500 HD Classic	SLE
2007	GMC	Sierra 1500 HD Classic	SLT
2002-2004	GMC	Sierra 2500	Base
1999-2002	GMC	Sierra 2500	SL
1999-2004	GMC	Sierra 2500	SLE
1999-2004	GMC	Sierra 2500	SLT
2003-2004	GMC	Sierra 2500	WT
2002-2005	GMC	Sierra 2500 HD	Base
2011-2013	GMC	Sierra 2500 HD	Denali
2001-2002,2006	GMC	Sierra 2500 HD	SL
2001-2013	GMC	Sierra 2500 HD	SLE
2001-2013	GMC	Sierra 2500 HD	SLT
2003-2013	GMC	Sierra 2500 HD	WT
2007	GMC	Sierra 2500 HD Classic	SL
2007	GMC	Sierra 2500 HD Classic	SLE
2007	GMC	Sierra 2500 HD Classic	SLT
2007	GMC	Sierra 2500 HD Classic	WT
2006	Hummer	H1	Alpha
2006-2009	Hummer	H2	Base
2008-2009	Hummer	H3	Alpha
2006-2009	Hummer	H3	Base
2009	Hummer	H3	Championship Series
2007-2009	Hummer	H3	X
1992-1996	Oldsmobile	88	Royale
1992-1996	Oldsmobile	88	Royale LS
1995	Oldsmobile	88	Royale LSS
1988-1990,1992-1994	Oldsmobile	98	Regency
1988-1990	Oldsmobile	98	Regency Brougham
1991-1996	Oldsmobile	98	Regency Elite
1988-1990	Oldsmobile	98	Regency Touring
1991-1993	Oldsmobile	98	Touring
1992-1996	Oldsmobile	Achieva	S
1992,1994,1996	Oldsmobile	Achieva	SC
1992-1993	Oldsmobile	Achieva	SCX
1992-1996	Oldsmobile	Achieva	SL
1995-1996	Oldsmobile	Aurora	Base
1988-1992	Oldsmobile	Custom Cruiser	Base
1988-1991	Oldsmobile	Cutlass Calais	Base
1988-1991	Oldsmobile	Cutlass Calais	GT
1988-1991	Oldsmobile	Cutlass Calais	International
1989-1991	Oldsmobile	Cutlass Calais	S
1988-1991	Oldsmobile	Cutlass Calais	SL
1988-1993,1995-1996	Oldsmobile	Cutlass Ciera	Base
1988	Oldsmobile	Cutlass Ciera	Brougham
1989-1990	Oldsmobile	Cutlass Ciera	GT
1988-1990	Oldsmobile	Cutlass Ciera	International
1988	Oldsmobile	Cutlass Ciera	LS
1988,1990-1994	Oldsmobile	Cutlass Ciera	S
1988-1994	Oldsmobile	Cutlass Ciera	SL
1989-1990,1993-1994	Oldsmobile	Cutlass Cruiser	Base
1988	Oldsmobile	Cutlass Cruiser	Brougham LS
1988	Oldsmobile	Cutlass Cruiser	LS
1991-1994	Oldsmobile	Cutlass Cruiser	S
1988-1992	Oldsmobile	Cutlass Cruiser	SL
1994	Oldsmobile	Cutlass Cruiser	Special Edition
1988-1996	Oldsmobile	Cutlass Supreme	Base
1988	Oldsmobile	Cutlass Supreme	Classic
1988	Oldsmobile	Cutlass Supreme	Classic Brougham