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.
Eaton Posi* Differential; 28 Spline; 3.36 And Up Ring Gear Pinion Ratio; Rear 8.2 in.;
Vehicle Fitment
| Years |
Make |
Model |
Trim |
| 1971 |
Buick |
Centurion |
Base |
| 1968–1971 |
Buick |
Electra |
225 |
| 1968–1971 |
Buick |
Electra |
225 Custom |
| 1964–1967 |
Buick |
Electra |
Base |
| 1966–1967 |
Buick |
Electra |
Custom |
| 1964, 1970–1971 |
Buick |
Estate Wagon |
Base |
| 1965–1967 |
Buick |
Gran Sport |
Base |
| 1970–1971 |
Buick |
GS |
Base |
| 1968–1969 |
Buick |
GS 350 |
Base |
| 1968–1969 |
Buick |
GS 400 |
Base |
| 1970–1971 |
Buick |
GS 455 |
Base |
| 1970 |
Buick |
GS 455 |
GSX |
| 1964–1971 |
Buick |
Lesabre |
Base |
| 1965–1971 |
Buick |
Lesabre |
Custom |
| 1964–1971 |
Buick |
Riviera |
Base |
| 1965–1966, 1971 |
Buick |
Riviera |
Gran Sport |
| 1970 |
Buick |
Skylark |
350 |
| 1964–1971 |
Buick |
Skylark |
Base |
| 1968–1971 |
Buick |
Skylark |
Custom |
| 1964–1969 |
Buick |
Special |
Base |
| 1964–1967 |
Buick |
Special |
Deluxe |
| 1964–1971 |
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 |
| 1964–1971 |
Chevrolet |
BEL AIR |
Base |
| 1964–1971 |
Chevrolet |
Biscayne |
Base |
| 1969–1971 |
Chevrolet |
Brookwood |
Base |
| 1967–1971 |
Chevrolet |
Camaro |
|
| 1967–1971 |
Chevrolet |
Camaro |
Base |
| 1967–1971 |
Chevrolet |
Camaro |
RS |
| 1967–1971 |
Chevrolet |
Camaro |
SS |
| 1966–1971 |
Chevrolet |
Caprice |
Base |
| 1967–1968 |
Chevrolet |
Chevelle |
300 |
| 1967–1969 |
Chevrolet |
Chevelle |
300 Deluxe |
| 1964–1968, 1970–1971 |
Chevrolet |
Chevelle |
Base |
| 1967–1971 |
Chevrolet |
Chevelle |
Concours |
| 1969–1971 |
Chevrolet |
Chevelle |
Concours Estate |
| 1965–1967 |
Chevrolet |
Chevelle |
Deluxe |
| 1969–1971 |
Chevrolet |
Chevelle |
Greenbrier |
| 1968–1971 |
Chevrolet |
Chevelle |
Malibu |
| 1968–1971 |
Chevrolet |
Chevelle |
Nomad |
| 1964–1971 |
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 |
| 1964–1971 |
Chevrolet |
Corvette |
Base |
| 1969–1970 |
Chevrolet |
Estate |
Base |
| 1964–1971 |
Chevrolet |
Impala |
Base |
| 1964–1967 |
Chevrolet |
Impala |
SS |
| 1969–1971 |
Chevrolet |
Kingswood |
|
| 1969–1971 |
Chevrolet |
Kingswood |
Base |
| 1964–1967 |
Chevrolet |
Malibu |
Base |
| 1970–1971 |
Chevrolet |
Monte Carlo |
Base |
| 1969–1971 |
Chevrolet |
Nova |
Base |
| 1969–1971 |
Chevrolet |
Townsman |
Base |
| 1971 |
Chevrolet |
Vega |
Base |
| 1971 |
Chevrolet |
Vega |
Panel |
| 1964–1971 |
Oldsmobile |
442 |
Base |
| 1964–1971 |
Oldsmobile |
98 |
Base |
| 1964 |
Oldsmobile |
98 |
Custom |
| 1964–1967 |
Oldsmobile |
98 |
Holiday |
| 1971 |
Oldsmobile |
Custom Cruiser |
Base |
| 1964–1971 |
Oldsmobile |
Cutlass |
Base |
| 1964–1967 |
Oldsmobile |
Cutlass |
Holiday |
| 1968, 1971 |
Oldsmobile |
Cutlass |
S |
| 1967 |
Oldsmobile |
Cutlass |
Turnpike Cruiser |
| 1967–1971 |
Oldsmobile |
Cutlass Supreme |
Base |
| 1967–1968 |
Oldsmobile |
Delmont 88 |
Base |
| 1967 |
Oldsmobile |
Delmont 88 |
Holiday |
| 1965–1971 |
Oldsmobile |
Delta 88 |
Base |
| 1967–1971 |
Oldsmobile |
Delta 88 |
Custom |
| 1965–1967 |
Oldsmobile |
Delta 88 |
Holiday |
| 1969–1971 |
Oldsmobile |
Delta 88 |
Royale |
| 1964–1966 |
Oldsmobile |
Dynamic 88 |
Base |
| 1964–1966 |
Oldsmobile |
Dynamic 88 |
Holiday |
| 1964–1971 |
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 |
| 1966–1971 |
Oldsmobile |
Toronado |
Base |
| 1971 |
Oldsmobile |
Toronado |
Brougham |
| 1968–1970 |
Oldsmobile |
Toronado |
Custom |
| 1966–1967 |
Oldsmobile |
Toronado |
Deluxe |
| 1964–1971 |
Oldsmobile |
Vista Cruiser |
Base |
| 1964–1967 |
Oldsmobile |
Vista Cruiser |
Custom |
| 1964–1971 |
Pontiac |
Bonneville |
Base |
| 1964–1970 |
Pontiac |
Bonneville |
Safari |
| 1964–1967 |
Pontiac |
Catalina |
2+2 |
| 1964–1971 |
Pontiac |
Catalina |
Base |
| 1971 |
Pontiac |
Catalina |
Brougham |
| 1964–1971 |
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 |
| 1967–1971 |
Pontiac |
Firebird |
Base |
| 1970–1971 |
Pontiac |
Firebird |
Esprit |
| 1970–1971 |
Pontiac |
Firebird |
Formula |
| 1967 |
Pontiac |
Firebird |
HO |
| 1967–1969 |
Pontiac |
Firebird |
Sprint |
| 1969–1971 |
Pontiac |
Firebird |
Trans AM |
| 1964–1971 |
Pontiac |
Grand Prix |
Base |
| 1971 |
Pontiac |
Grand Safari |
Base |
| 1971 |
Pontiac |
Grandville |
Base |
| 1964–1971 |
Pontiac |
GTO |
Base |
| 1970–1971 |
Pontiac |
GTO |
THE Judge |
| 1971 |
Pontiac |
Lemans |
|
| 1964–1971 |
Pontiac |
Lemans |
Base |
| 1969–1970 |
Pontiac |
Lemans |
Safari |
| 1970–1971 |
Pontiac |
Lemans |
Sport |
| 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 |
Pontiac |
Ventura |
Base |
| Air Freight Prohibited: false |
| Not Carb Approved: false |
| Carb Acknowledgement Required: f |
| Ltl Freight Required: false |
| Prop 65: Unknown |
| Epa: N/A |
| Clearance Item: f |