Eaton Posi Limited-Slip Differential — 30 Spline, 2.73+ Ratio Fr/Rr 8.5in/Rr 8.6in

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SKU: EAT19559-010

About Eaton Eaton engineers high-quality automotive parts and accessories trusted ...Read more

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Sale price$765.01 Regular price$766.00
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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About Eaton

Eaton engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Eaton lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Enhance Traction and Performance with the Eaton Posi Limited-Slip Differential

Take control of your vehicle's traction with the Eaton Posi limited-slip differential. Renowned for its seamless, automatic operation and robust construction, the Posi differential is the ideal upgrade for street rods, light-duty pickups, and tarmac racing cars seeking superior grip and performance. Its advanced design ensures power is delivered effectively to both wheels, even in challenging conditions.

Key Features and Benefits:

  • Superior Traction Control: Automatically biases torque to the wheel with more grip, significantly improving acceleration and handling on various surfaces.
  • High-Strength Construction: Features net-forged gears for exceptional durability and a rebuildable design for long-term service life.
  • Advanced Clutch System: Utilizes pyrolytic carbon clutches for smooth engagement and reliable performance under load.
  • Versatile Fitment: Designed for GM 8.5-inch front and 8.6-inch rear axles with 30 spline count and compatible with gear ratios of 2.73 and numerically higher.
  • Automatic Operation: Provides seamless, driver-transparent performance without requiring driver input.

This Eaton Posi differential (SKU: 19559-010) is engineered to enhance the performance and drivability of a wide range of vehicles, from classic muscle cars to modern trucks. Whether you're looking to improve launch stability, cornering grip, or overall confidence on the road, the Eaton Posi delivers reliable and effective traction enhancement.

Discover top-tier differential solutions at GGCRACING.

…and 285 additional fitments. Contact us to confirm yours.

About Eaton

Eaton engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Eaton lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

Enhance Traction and Performance with the Eaton Posi Limited-Slip Differential

Take control of your vehicle's traction with the Eaton Posi limited-slip differential. Renowned for its seamless, automatic operation and robust construction, the Posi differential is the ideal upgrade for street rods, light-duty pickups, and tarmac racing cars seeking superior grip and performance. Its advanced design ensures power is delivered effectively to both wheels, even in challenging conditions.

Key Features and Benefits:

  • Superior Traction Control: Automatically biases torque to the wheel with more grip, significantly improving acceleration and handling on various surfaces.
  • High-Strength Construction: Features net-forged gears for exceptional durability and a rebuildable design for long-term service life.
  • Advanced Clutch System: Utilizes pyrolytic carbon clutches for smooth engagement and reliable performance under load.
  • Versatile Fitment: Designed for GM 8.5-inch front and 8.6-inch rear axles with 30 spline count and compatible with gear ratios of 2.73 and numerically higher.
  • Automatic Operation: Provides seamless, driver-transparent performance without requiring driver input.

This Eaton Posi differential (SKU: 19559-010) is engineered to enhance the performance and drivability of a wide range of vehicles, from classic muscle cars to modern trucks. Whether you're looking to improve launch stability, cornering grip, or overall confidence on the road, the Eaton Posi delivers reliable and effective traction enhancement.

Discover top-tier differential solutions at GGCRACING.

…and 285 additional fitments. Contact us to confirm yours.

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