Summit Racing SpeedCard - learn how to get 10% back up to $100

Summit Racing SpeedCard - learn how to get 10% back up to $100

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EATON

Eaton Posi Performance Differentials

4.68 out of 5 stars 104 Customer Reviews

Big torque doesn't have to mean big traction problems. Eaton Posi Performance differentials combine carbon friction discs with precision-forged gears to give you great traction, even under higher torque loads. Plus, the carbon friction discs produce smooth, quiet performance for the life of your vehicle.

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Eaton Posi Performance 30 Spline Differential GM 8.875 Inch (12-bolt), truck 19587-010

Eaton Posi Performance 30 Spline Differential GM 8.875 Inch (12-bolt), truck 19587-010

Eaton Posi Performance 30 Spline Differential GM 8.875 Inch (12-bolt), truck 19587-010

Differential, Posi Performance, Limited Slip, 30-Spline, GM, 12-Bolt, 3 Series, Each

Part Number: ETN-19587-010

4.79 out of 5 stars ( 14 )

Estimated Ship Date: Today

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Eaton Posi Performance 30 Spline Differential GM 8.875 Inch (12-bolt) 19554-010

Eaton Posi Performance 30 Spline Differential GM 8.875 Inch (12-bolt) 19554-010

Eaton Posi Performance 30 Spline Differential GM 8.875 Inch (12-bolt) 19554-010

Differential, Posi Performance, Limited Slip, 30-Spline, GM, 12-Bolt, 3 Series, Each

Part Number: ETN-19554-010

4.68 out of 5 stars ( 22 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Eaton Posi Performance 30 Spline Differential GM 8.5/8.6 Inch 19559-010

Eaton Posi Performance 30 Spline Differential GM 8.5/8.6 Inch 19559-010

Eaton Posi Performance 30 Spline Differential GM 8.5/8.6 Inch 19559-010

Differential, Posi Performance, Limited Slip, 30-Spline, GM, 8.5 in., Truck, 3 Series, Each

Part Number: ETN-19559-010

4.9 out of 5 stars ( 10 )

Estimated Ship Date: Today

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Eaton Posi Performance 28 Spline Differential GM 8.5 Inch 19557-010

Eaton Posi Performance 28 Spline Differential GM 8.5 Inch 19557-010

Eaton Posi Performance 28 Spline Differential GM 8.5 Inch 19557-010

Differential, Posi Performance, Limited Slip, 28-Spline, GM, 8.5 in., 3 Series, Each

Part Number: ETN-19557-010

4.73 out of 5 stars ( 15 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Eaton Posi Performance 30 Spline Differential GM 8.875 Inch (12-bolt) 19555-010

Eaton Posi Performance 30 Spline Differential GM 8.875 Inch (12-bolt) 19555-010

Eaton Posi Performance 30 Spline Differential GM 8.875 Inch (12-bolt) 19555-010

Differential, Posi Performance, Limited Slip, 30-Spline, GM, 12-Bolt, 4 Series, Each

Part Number: ETN-19555-010

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Eaton Posi Performance 30 Spline Differential GM 8.875 Inch (12-bolt), truck 19556-010

Eaton Posi Performance 30 Spline Differential GM 8.875 Inch (12-bolt), truck 19556-010

Eaton Posi Performance 30 Spline Differential GM 8.875 Inch (12-bolt), truck 19556-010

Differential, Posi Performance, Limited Slip, 30-Spline, 12-Bolt, 4 Series, Chevy, GMC, Truck, Each

Part Number: ETN-19556-010

4.5 out of 5 stars ( 8 )

Estimated Ship Date: Today

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Estimated Ship Date: Today

Eaton Posi Performance 31 Spline Differential Ford 8.8 Inch 19588-010

Eaton Posi Performance 31 Spline Differential Ford 8.8 Inch 19588-010

Eaton Posi Performance 31 Spline Differential Ford 8.8 Inch 19588-010

Differential, Posi Performance, Limited Slip, 31-Spline, Ford, 8.8 in., Each

Part Number: ETN-19588-010

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Oct 17, 2025 if ordered today

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Estimated Ship Date: Oct 17, 2025 if ordered today

Need It Sooner? We recommend these similar substitute parts:

Yukon Gear & Axle Dura Grip Positraction Carriers Ford 8.8 Inch YDGF8.8-31-1

Yukon Gear & Axle Dura Grip Positraction Carriers Ford 8.8 Inch YDGF8.8-31-1

3.5 out of 5 stars ( 6 )

Estimated Ship Date: Today

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