Eaton Posi limited-slip | GM 8.875″ 12-Bolt Rear Chevy Truck 1964-1982 | 30 Spline Axles | 3.73 & 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: 19554-010

Traction Type: Eaton Posi limited-slip

Carrier Break: 3.73 & Up

Differential: GM 8.875″ 12 bolt C-Clip

Vehicle Fitment

• 1975 – 1982        Chevrolet             C10
• 1975 – 1981        Chevrolet             G10
• 1975 – 1982        Chevrolet             K10
• 1965 – 1966        Chevrolet             Suburban
• 1969 – 1974        Chevrolet             Blazer
• 1975 – 1978        GMC      C15
• 1979 – 1981        GMC      C1500
• 1975 – 1978        GMC      G15
• 1979 – 1981        GMC      G1500
• 1970 – 1981        GMC      Jimmy
• 1975 – 1978        GMC      K15
• 1979 – 1982        GMC      K1500 Suburban

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)