Eaton Posi Diff 28 Spline 1.20in Axle Shaft Dia 3.23 & Up Ratio Rear 7.5in/7.625in/8.5in/8.6in/9.5in

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
1988-2002	Buick	Century	Custom
1988-1989	Buick	Century	Estate Wagon
1988-1993,1996-2002	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
1988-2002	Buick	LeSabre	Custom
1988-1990	Buick	LeSabre	Estate Wagon
1988-2002	Buick	LeSabre	Limited
1991-2002	Buick	Park Avenue	Base
1991-2002	Buick	Park Avenue	Ultra
1988-1991	Buick	Reatta	Base
1998	Buick	Regal	25th Anniversary Edition
1988-1996	Buick	Regal	Custom
1989-1996	Buick	Regal	Gran Sport
1997-2002	Buick	Regal	GS
2000	Buick	Regal	GSE
1988-1996	Buick	Regal	Limited
1997-2002	Buick	Regal	LS
2000	Buick	Regal	LSE
1996	Buick	Regal	Olympic Gold Edition
1995-1999	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
1988-1998	Buick	Skylark	Custom
1990-1997	Buick	Skylark	Gran Sport
1988-1989,1993-1997	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
1988,1993-2002	Chevrolet	Camaro	Base
1993	Chevrolet	Camaro	Indianapolis 500 Pace Car
1988-1990	Chevrolet	Camaro	Iroc-Z
1989-1992,1996-1997	Chevrolet	Camaro	RS
1992	Chevrolet	Camaro	RS Heritage Edition
1991-2002	Chevrolet	Camaro	Z28
1992	Chevrolet	Camaro	Z28 Heritage Edition
1998-2002	Chevrolet	Camaro	Z28 SS
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
1988-1990,1995-2002	Chevrolet	Cavalier	Base
1995-2002	Chevrolet	Cavalier	LS
2002	Chevrolet	Cavalier	LS Sport
1988-1994,1997-1999	Chevrolet	Cavalier	RS
1988-1994	Chevrolet	Cavalier	VL
1988-2002	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
1988-2002	Chevrolet	Corvette	Base
1996	Chevrolet	Corvette	Collector's Edition
1996	Chevrolet	Corvette	Grand Sport
1995,1998	Chevrolet	Corvette	Indianapolis 500 Pace Car
2001-2002	Chevrolet	Corvette	Z06
1990-1995	Chevrolet	Corvette	ZR-1
2000-2002	Chevrolet	Impala	Base
2000-2002	Chevrolet	Impala	LS
1994-1996	Chevrolet	Impala	SS
1990-2001	Chevrolet	Lumina	Base
1990-1994	Chevrolet	Lumina	Euro
1995-1999	Chevrolet	Lumina	LS
1997-1999	Chevrolet	Lumina	LTZ
1991-1994	Chevrolet	Lumina	Z34
1997-2002	Chevrolet	Malibu	Base
1997-2002	Chevrolet	Malibu	LS
1998-2000	Chevrolet	Metro	Base
1998-2001	Chevrolet	Metro	LSi
1988	Chevrolet	Monte Carlo	Base
1999	Chevrolet	Monte Carlo	Indianapolis 500 Pace Car
1988,1995-2002	Chevrolet	Monte Carlo	LS
1988,2000-2002	Chevrolet	Monte Carlo	SS
2002	Chevrolet	Monte Carlo	SS 35th Anniversary Edition
2002	Chevrolet	Monte Carlo	SS Dale Earnhardt Signature Edition
1995-1999	Chevrolet	Monte Carlo	Z34
1988	Chevrolet	Nova	Base
1988	Chevrolet	Nova	CL
1988	Chevrolet	Nova	Twin Cam
1998-2002	Chevrolet	Prizm	Base
1998-2002	Chevrolet	Prizm	LSi
1999-2002	Chevrolet	Silverado 1500	Base
1999-2002	Chevrolet	Silverado 1500	LS
1999-2002	Chevrolet	Silverado 1500	LT
2002	Chevrolet	Silverado 1500	WT
2001-2002	Chevrolet	Silverado 1500 HD	LS
2001-2002	Chevrolet	Silverado 1500 HD	LT
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	GMC	Sierra 1500	Base
2002	GMC	Sierra 1500	Denali
2002	GMC	Sierra 1500	HT
1999-2002	GMC	Sierra 1500	SL
1999-2002	GMC	Sierra 1500	SLE
1999-2002	GMC	Sierra 1500	SLT
2002	GMC	Sierra 1500	WT
2001-2002	GMC	Sierra 1500 HD	SLE
2001-2002	GMC	Sierra 1500 HD	SLT
1999	Oldsmobile	88	50th Anniversary Edition
1992-1999	Oldsmobile	88	Royale
1992-1999	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
1992-1996,1998	Oldsmobile	Achieva	S
1992,1994,1996-1997	Oldsmobile	Achieva	SC
1992-1993	Oldsmobile	Achieva	SCX
1992-1997	Oldsmobile	Achieva	SL
1999-2002	Oldsmobile	Alero	GL
1999-2002	Oldsmobile	Alero	GLS
1999-2002	Oldsmobile	Alero	GX
1995-1999,2001-2002	Oldsmobile	Aurora	Base
1988-1992	Oldsmobile	Custom Cruiser	Base
1997-1998	Oldsmobile	Cutlass	Base
1999	Oldsmobile	Cutlass	GL
1997-1999	Oldsmobile	Cutlass	GLS
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
1988-1997	Oldsmobile	Cutlass Supreme	Base
1988	Oldsmobile	Cutlass Supreme	Classic
1988	Oldsmobile	Cutlass Supreme	Classic Brougham
1988	Oldsmobile	Cutlass Supreme	Indy 500 Pace Car
1988-1993	Oldsmobile	Cutlass Supreme	International
1992-1994	Oldsmobile	Cutlass Supreme	S
1988-1991,1995-1997	Oldsmobile	Cutlass Supreme	SL
1988-1991	Oldsmobile	Delta 88	Royale
1988-1991	Oldsmobile	Delta 88	Royale Brougham
1988	Oldsmobile	Firenza	Base
1988	Oldsmobile	Firenza	Cruiser
1998	Oldsmobile	Intrigue	Base
1998-2002	Oldsmobile	Intrigue	GL
1998-2002	Oldsmobile	Intrigue	GLS
1999-2002	Oldsmobile	Intrigue	GX
1996-1999	Oldsmobile	LSS	Base
1997-1998	Oldsmobile	Regency	Base
1988-1992	Oldsmobile	Toronado	Base
1988-1992	Oldsmobile	Toronado	Trofeo
1988-1989	Pontiac	6000	Base
1988-1991	Pontiac	6000	LE
1988	Pontiac	6000	SE
1989-1991	Pontiac	6000	Special Edition
1988-1989	Pontiac	6000	STE
1988-1991	Pontiac	Bonneville	LE
1988-2002	Pontiac	Bonneville	SE
2000-2002	Pontiac	Bonneville	SLE
1988-1999	Pontiac	Bonneville	SSE
1992-2002	Pontiac	Bonneville	SSEi
1988	Pontiac	Fiero	Formula
1988	Pontiac	Fiero	GT