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PRO Gear Differential Ring and Pinion
For Ford 9"; 4.57 Ratio; Pro Gear; Big Pinion; Dual Drilled for 1/2" and 7/16" Ring Gear Bolts
Richmond - PRO Gear Differential Ring and Pinion
Differential Ring and Pinion
Product Attributes:
- Differential Case Design Type: Ford 9
- Gear Ratio: 4.57
- Ring Gear Rotation: Standard
- Pinion Spline Count: 35
- Pinion Shaft Diameter: 1.875
- Cover Bolt Quantity: Dropout
- Pinion Gear Tooth Quantity: 7
- Ring Gear Tooth Quantity: 32
- Ring Gear Material: 9310 Steel
Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND!

This Part Fits the Following OEM/Substitute Numbers:

F990457BP

Additional Fitment Information:

Vehicle	Position
1957 - Ford Fairlane	Rear

2 In Stock

Limited-Time Offer

$1,278.17 USD

$1,533.80 USD

UPC: 00698231699652

For Ford 9"; 4.11 Ratio
Richmond - Street Gear Differential Ring and Pinion
Differential Ring and Pinion
Product Attributes:
- Differential Case Design Type: Ford 9
- Gear Ratio: 4.11
- Ring Gear Rotation: Standard
- Pinion Spline Count: 28
- Pinion Shaft Diameter: 1.313
- Cover Bolt Quantity: Dropout
- Ring Gear Tooth Quantity: 37
- Ring Gear Material: 8620 Steel
Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND!