Eaton Posi Differential 30 Spline 1.29in Axle Shaft Diameter 3.08-3.90 Ratio Rear 8.875in

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
1971-1972	Buick	Centurion	Base
1968-1972	Buick	Electra	225
1968-1972	Buick	Electra	225 Custom
1964-1967	Buick	Electra	Base
1966-1967	Buick	Electra	Custom
1964,1970-1972	Buick	Estate Wagon	Base
1965-1967	Buick	Gran Sport	Base
1970-1972	Buick	GS	Base
1968-1969	Buick	GS 350	Base
1968-1969	Buick	GS 400	Base
1970-1972	Buick	GS 455	Base
1970	Buick	GS 455	GSX
1964-1972	Buick	LeSabre	Base
1965-1972	Buick	LeSabre	Custom
1964-1972	Buick	Riviera	Base
1965-1966,1971	Buick	Riviera	Gran Sport
1970,1972	Buick	Skylark	350
1964-1972	Buick	Skylark	Base
1968-1972	Buick	Skylark	Custom
1964-1969	Buick	Special	Base
1964-1967	Buick	Special	Deluxe
1964-1972	Buick	Sportwagon	Base
1966,1968-1969	Buick	Sportwagon	Custom
1964-1969	Buick	Wildcat	Base
1965-1970	Buick	Wildcat	Custom
1965	Buick	Wildcat	Deluxe
1966	Buick	Wildcat	Gran Sport
1964-1972	Chevrolet	Bel Air	Base
1964-1972	Chevrolet	Biscayne	Base
1969-1972	Chevrolet	Brookwood	Base
1967-1972	Chevrolet	Camaro	Base
1967-1972	Chevrolet	Camaro	RS
1967-1972	Chevrolet	Camaro	SS
1967-1972	Chevrolet	Camaro	Z28
1966-1972	Chevrolet	Caprice	Base
1967-1968	Chevrolet	Chevelle	300
1967-1969	Chevrolet	Chevelle	300 Deluxe
1964-1968,1970-1972	Chevrolet	Chevelle	Base
1967-1972	Chevrolet	Chevelle	Concours
1969-1972	Chevrolet	Chevelle	Concours Estate
1965-1967	Chevrolet	Chevelle	Deluxe
1969-1972	Chevrolet	Chevelle	Greenbrier
1968-1972	Chevrolet	Chevelle	Malibu
1968-1972	Chevrolet	Chevelle	Nomad
1964-1972	Chevrolet	Chevelle	SS
1964-1967	Chevrolet	Chevy II	Base
1964-1968	Chevrolet	Chevy II	Nova
1964-1967	Chevrolet	Chevy II	Nova SS
1968-1969	Chevrolet	Corvair	500
1964-1967	Chevrolet	Corvair	Base
1965-1966	Chevrolet	Corvair	Corsa
1964	Chevrolet	Corvair	Deluxe
1964-1969	Chevrolet	Corvair	Monza
1964	Chevrolet	Corvair	Monza Spyder
1964-1972	Chevrolet	Corvette	Base
1969-1970	Chevrolet	Estate	Base
1964-1972	Chevrolet	Impala	Base
1964-1967	Chevrolet	Impala	SS
1969-1972	Chevrolet	Kingswood	Base
1969-1972	Chevrolet	Kingswood	Estate
1964-1967	Chevrolet	Malibu	Base
1970-1972	Chevrolet	Monte Carlo	Base
1969-1972	Chevrolet	Nova	Base
1969-1972	Chevrolet	Townsman	Base
1971-1972	Chevrolet	Vega	Base
1971-1972	Chevrolet	Vega	Panel
1964-1971	Oldsmobile	442	Base
1964-1972	Oldsmobile	98	Base
1964	Oldsmobile	98	Custom
1964-1967	Oldsmobile	98	Holiday
1971-1972	Oldsmobile	Custom Cruiser	Base
1964-1972	Oldsmobile	Cutlass	Base
1972	Oldsmobile	Cutlass	Cruiser
1964-1967	Oldsmobile	Cutlass	Holiday
1968,1971-1972	Oldsmobile	Cutlass	S
1967	Oldsmobile	Cutlass	Turnpike Cruiser
1967-1972	Oldsmobile	Cutlass Supreme	Base
1967-1968	Oldsmobile	Delmont 88	Base
1967	Oldsmobile	Delmont 88	Holiday
1965-1972	Oldsmobile	Delta 88	Base
1967-1971	Oldsmobile	Delta 88	Custom
1965-1967	Oldsmobile	Delta 88	Holiday
1969-1972	Oldsmobile	Delta 88	Royale
1964-1966	Oldsmobile	Dynamic 88	Base
1964-1966	Oldsmobile	Dynamic 88	Holiday
1964-1972	Oldsmobile	F85	Base
1964-1966	Oldsmobile	F85	Deluxe
1966	Oldsmobile	F85	Holiday
1964	Oldsmobile	Fiesta	Base
1964-1966	Oldsmobile	Jetstar 88	Base
1964-1966	Oldsmobile	Jetstar 88	Holiday
1964-1965	Oldsmobile	Jetstar I	Base
1964-1966	Oldsmobile	Starfire	Base
1964	Oldsmobile	Super 88	Base
1964	Oldsmobile	Super 88	Holiday
1966-1972	Oldsmobile	Toronado	Base
1971-1972	Oldsmobile	Toronado	Brougham
1968-1970	Oldsmobile	Toronado	Custom
1966-1967	Oldsmobile	Toronado	Deluxe
1964-1972	Oldsmobile	Vista Cruiser	Base
1964-1967	Oldsmobile	Vista Cruiser	Custom
1964-1972	Pontiac	Bonneville	Base
1964-1970	Pontiac	Bonneville	Safari
1964-1967	Pontiac	Catalina	2+2
1964-1972	Pontiac	Catalina	Base
1971-1972	Pontiac	Catalina	Brougham
1964-1972	Pontiac	Catalina	Safari
1964-1970	Pontiac	Catalina	Ventura
1967-1970	Pontiac	Executive	Base
1967-1970	Pontiac	Executive	Safari
1968-1969	Pontiac	Firebird	350
1969	Pontiac	Firebird	350 HO
1967-1969	Pontiac	Firebird	400
1967-1972	Pontiac	Firebird	Base
1970-1972	Pontiac	Firebird	Esprit
1970-1972	Pontiac	Firebird	Formula
1967	Pontiac	Firebird	HO
1967-1969	Pontiac	Firebird	Sprint
1969-1972	Pontiac	Firebird	Trans Am
1964-1972	Pontiac	Grand Prix	Base
1971-1972	Pontiac	Grand Safari	Base
1971-1972	Pontiac	Grandville	Base
1964-1972	Pontiac	GTO	Base
1970-1971	Pontiac	GTO	The Judge
1964-1972	Pontiac	LeMans	Base
1972	Pontiac	LeMans	Luxury
1969-1970	Pontiac	LeMans	Safari
1970-1972	Pontiac	LeMans	Sport
1971	Pontiac	LeMans	T37
1964-1966	Pontiac	Star Chief	Base
1966	Pontiac	Star Chief	Executive
1964-1970	Pontiac	Tempest	Base
1964-1969	Pontiac	Tempest	Custom
1970	Pontiac	Tempest	GT
1964-1969	Pontiac	Tempest	Safari
1971-1972	Pontiac	Ventura	Base