Eaton Posi limited-slip | GM 10.50″ Rear 1972-2015 Chevy/GM 2500/3500 | 30 Spline Axles | 4.10 & Down

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: 19689-010

Traction Type: Eaton Posi limited-slip

Carrier Break: 4.10 And Down

Differential: GM 10.5 Inch

Vehicle Fitment

• 1975 – 1986        Chevrolet             C20
• 1988 – 1998        Chevrolet             C3500
• 1988 – 2000        Chevrolet             K3500
• 1999 – 2012        Chevrolet             Silverado 2500
• 2007 – 2012        Chevrolet             Silverado 3500
• 2002 – 2006        Chevrolet             Avalanche 2500
• 1988 – 1997        GMC      C2500
• 1979 – 1996        GMC      G3500
• 1988 – 1997        GMC      K2500
• 1987 – 1990        GMC      R3500
• 1987 – 1990        GMC      V3500
• 2000 – 2010        GMC      Yukon XL 2500
• 2001 – 2004        GMC      Sierra 2500

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)