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Richmond Gear 6900471 Ring and Pinion Set 4.57 Ratio Chrysler 8.75" 742 Housing

(Chrysler 300 1957-68, Town & Country 1957-74, Newport 1957-74, New Yorker 1957-74, Imperial 1957-74; Dodge Charger 1966-70, Challenger 1970-74 + 25 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

6900471
7 reviews
Sale Price

$347.16

2 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The Richmond Gear 69-0047-1 ring and pinion set is engineered for Chrysler 8.75-inch (742 housing) differentials, offering high-performance gearing with a 4.57 ratio perfect for street, strip, and restoration builds requiring improved torque and acceleration. This gear set features a 4.57 gear ratio with precision-cut teeth from premium 8620 steel for maximum durability in performance street or strip applications.

Key Specifications:

  • Gear Ratio: 4.57:1
  • Ring Gear Teeth: 32
  • Pinion Gear Teeth: 7
  • Application: Chrysler 8.75" (742 Casting)
  • Pinion Spline Count: 10
  • Material: Premium 8620 Steel
  • Configuration: Standard Rotation

The superior quality of these gear sets is the result of years of racing development, outstanding design, and state-of-the-art manufacturing methods. Richmond ring and pinion gearsets are computer-controlled manufactured from the foundry, to cutting gears at 1,000th of an inch precision, to heat-treating the finished product. Built with premium materials and precision machining for quiet and reliable operation.

Backed by a 2-Year / 100,000-Mile Warranty, Richmond Gear ring and pinion sets are trusted by performance enthusiasts for precision engineering, quiet operation, and durability under extreme conditions. This gear set is ideal for vintage Mopar muscle cars and classic vehicles requiring enhanced acceleration and torque multiplication.

Products specifications

Fits

Chrysler 300 1957-68, Town & Country 1957-74, Newport 1957-74, New Yorker 1957-74, Imperial 1957-74; Dodge Charger 1966-70, Challenger 1970-74, Dart 1968-72, Coronet 1965-71, Polara 1962-73, D100 Pickup 1968, Monaco 1965-74 + 20 more models

Calculator

Gear Ratio Calculator

Cover Bolts

10

Installation Kit Included

No

Pinion Gear Teeth

7

Pinion Shaft Diameter (in)

1.750 in.

Pinion Spline Count

10

Quantity

Sold as a set.

Ring and Pinion Ratio

4.56:1

Ring Gear Bolts

12

Ring Gear Diameter (in)

8.750 in.

Ring Gear Rotation

Standard

Ring Gear Teeth

32

Tool

Transmission Lookup

Ring Gear Tooth Quantity

41

Ring Gear Diameter

8.75

Differential Case Design Type

Chrysler 8.75 (742)

Ring Gear Bolt Quantity

12

Pinion Shaft Diameter

1.75

Ring Gear Material

8620 Steel

Cover Bolt Quantity

Dropout

Pinion Gear Tooth Quantity

9

Ring and Pinion Gear Ratio

4.56

Prop 65

WARNING: Cancer - www.p65warnings.ca.gov

Position

Rear

Good to do business with.

These guys have amazing prices, shipping time was awesome considering it's right before christmas.

Easy!

Good seller, less expensive products compare to other online store, and fast shipping too, I ordered last Sunday July 29, and it will gonna be here tomorrow , so excited.. Highly recommended !

Order 18232. Everything came quicker than expected! Packed well and in excellent condition. Definitely recommended. Already did to one of my friends looking for parts.

Super fast shipping, great price, and items arrived perfect.

Great Price!!!! Nobody beats their price an free shipping.......psshhh

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