$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

$25 Off $250 / $50 Off $500, on Summit Racing Brand Products - Use Promo Code: BUILDIT

Summit Racing SpeedCard - learn how to get 10% back - Get Details!

Filters

  • In Stock
  • Differential Case Design Type
  • Make/Model
  • Drivetrain
  • Cover Bolts
  • Axle Shaft Spline Quantity
  • Manufacturer of Axle
  • Price Range
  • In Stock

Selected Filters

Filter Results by Vehicle

Loading...

Availability

  • Filters

  • Differential Case Design Type
  • Make/Model
  • Drivetrain
  • Cover Bolts
  • Axle Shaft Spline Quantity
  • Manufacturer of Axle
  • Price Range
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.

Showing In Stock Items. Show All 5 Items.

Results 1 - 5 of 5

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

...Loading

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: Today

...Loading

Estimated Ship Date: Today

Eaton Posi Performance 30 Spline Differential GM 10.5 Inch (14-bolt) 19689-010

Eaton Posi Performance 30 Spline Differential GM 10.5 Inch (14-bolt) 19689-010

Eaton Posi Performance 30 Spline Differential GM 10.5 Inch (14-bolt) 19689-010

Differential, Posi Performance, Limited Slip, 30-Spline, GM, 10.5 in., Each

Part Number: ETN-19689-010

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Eaton Posi Performance 30 Spline Differential GM 10.5 Inch (14-bolt) 19610-010

Eaton Posi Performance 30 Spline Differential GM 10.5 Inch (14-bolt) 19610-010

Eaton Posi Performance 30 Spline Differential GM 10.5 Inch (14-bolt) 19610-010

Differential, Posi Performance, Limited Slip, 30-Spline, GM, 10.5 in., Each

Part Number: ETN-19610-010

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 12, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 12, 2026 if ordered today

Eaton Posi Performance 28 Spline Differential Ford 8.8 Inch 19605-010

Eaton Posi Performance 28 Spline Differential Ford 8.8 Inch 19605-010

Eaton Posi Performance 28 Spline Differential Ford 8.8 Inch 19605-010

Differential Carrier, Posi Performance, Limited Slip, 28-Spline, Clutch Type, for 10-Bolt Cover, Ford, 8.8 in., Steel, Natural Finish, Each

Part Number: ETN-19605-010

Not Yet Reviewed

Estimated Ship Date: Jan 12, 2026 if ordered today

...Loading

Estimated Ship Date: Jan 12, 2026 if ordered today

  • 1
  • Page 1 of 1

Modal Header

Call To Order

This is a custom order part. You can order this part by Contacting Us.

Summit Racing Speedcard. Synchrony Car Care.

Summit Racing Equipment SpeedCard

Jumpstart Your Next Project!

View Details|See if you Prequalify