Eaton Posi limited-slip | GM 7.5″ Rear Chevy 1975-1989 | 26 Spline Axles | 3.23 & Up

The Eaton Posi limited-slip differential is the perfect way to control traction in street rods, light duty pickups and all types of tarmac running race cars.

Specs

Part Number: 19663-010

Traction Type: Eaton Posi limited-slip

Carrier Break: 3.23 & Up

Differential: GM 7.5 Inch

Vehicle Fitment

• 1982 – 1989        Chevrolet             Camaro
• 1978 – 1992        Chevrolet             Caprice
• 1977 – 1987        Chevrolet             El Camino
• 1977 – 1985        Chevrolet             Impala
• 1973 – 1983        Chevrolet             Malibu
• 1978 – 1988        Chevrolet             Monte Carlo
• 1977 – 1979        Chevrolet             Nova
• 1983 – 1989        Chevrolet             S10
• 1978 – 1988        Oldsmobile         Cutlass
• 1977 – 1989        Pontiac Firebird
• 1977 – 1987        Pontiac Grand Prix
• 1972 – 1977        Pontiac Ventura

Download EATON Application Guide PDF

Operation

The Posi prevents wheel slip before it can get started. Racebred carbon disc clutch packs, preloaded by a central spring assembly, are located behind each differential side gear. When torque input changes (one wheel slips), the clamping load on the clutch packs increases, causing them to smoothly transfer power to the other wheel as needed.

Performance

The Eaton Posi is smooth and automatic, requiring no driver input. Featuring pyrolytic carbon clutches and a rebuildable design, the Posi can be custom tuned for your desired performance.

Lubrication

A quality, petroleum-mineral based, GL5 rated 80w-90 gear oil should be used. It is necessary to add a four-ounce bottle of friction modifier for optimum performance (if friction modifier has not already been added to the petroleum-mineral based gear oil).

Features

• Superior rebuildable design
• Race-bred carbon friction discs
• Limited-slip operation
• Smooth and automatic engagement – no driver action needed
• Tunable via various spring packs (a.k.a. pre-loads)