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Richmond Gear 4900521 Street Performance Ring and Pinion Gear Set

(Chevrolet Corvette 1955-62, Impala 1958-64, El Camino 1959-60, 1964, Chevy II 1962-64, Bel Air 1955-64, Biscayne 1958-64, Nomad 1955-61 + 2 more models)

Part of: Richmond Gear Excel Differential Ring and Pinion Set

Other options in this family: Richmond Gear F9411 Richmond Gear F88410 Richmond Gear 4900391 Richmond Gear 12BC373T Richmond Gear 6903041

Manufacturer

Picture for manufacturer Richmond Gear

Part Number

4900521
4 reviews
Sale Price

$437.95

1 left at this price

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Usually delivered within 2 days

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Product Details

The Richmond Gear 4900521 is a precision-engineered ring and pinion gear set designed for street performance applications. This gear set delivers reliable power transfer and durability for enthusiasts seeking to optimize their vehicle's drivetrain performance.

Key Features:

  • Manufactured from high-strength alloy steel for maximum durability
  • Precision-cut gear teeth for quiet operation and smooth engagement
  • Heat-treated construction to withstand high torque loads
  • Engineered for street performance and daily driving applications
  • Backed by Richmond Gear's decades of racing heritage and proven performance

Richmond Gear has been the trusted choice of professional racers and performance enthusiasts for generations, with championship wins at premier events including the Daytona 500 and NHRA U.S. Nationals. Each ring and pinion set is manufactured to exacting tolerances to ensure proper gear contact, minimal wear, and long service life.

Note: Professional installation is recommended. Proper setup requires specialized tools and experience to ensure correct gear pattern, backlash, and bearing preload.

Products specifications

Fits

Chevrolet Corvette 1955-62, Impala 1958-64, El Camino 1959-60, 1964, Chevy II 1962-64, Bel Air 1955-64, Biscayne 1958-64, Nomad 1955-61, One-Fifty Series 1955-57, Two-Ten Series 1955-57

Calculator

Gear Ratio Calculator

Carrier Series

3

Cover Bolts

10

Installation Kit Included

No

Notes

Early model (1955-64) front load.

Pinion Gear Teeth

11

Pinion Shaft Diameter (in)

1.438 in.

Pinion Spline Count

17

Quantity

Sold as a set.

Ring and Pinion Ratio

3.55:1

Ring Gear Bolts

10

Ring Gear Diameter (in)

8.200 in.

Ring Gear Rotation

Standard

Ring Gear Teeth

39

Tool

Transmission Lookup

Ring and Pinion Gear Ratio

3.55

Differential Case Design Type

GM 8.2 (55-64)

Pinion Shaft Diameter

1.438

Pinion Gear Tooth Quantity

11

Cover Bolt Quantity

Dropout

Ring Gear Material

8620 Steel

Ring Gear Tooth Quantity

39

Ring Gear Diameter

8.2

Ring Gear Bolt Quantity

10

Differential Carrier Break

3.08 to 3.70

Prop 65

WARNING: Cancer - www.p65warnings.ca.gov

Position

Rear

Best prices, fast shipping, good service. Thank you!

Great prices and shipped promptly.

I love to shop at Autoplicity because of their selections and pricing options. Fast shipping and great customer service. The only thing I'd like to see is the site needs a continue shopping option after looking at cart. My overall experience has always

Fast shipping. And great cust service.

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