My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Richmond Gear 6903711 Ring and Pinion Gear Set 3.55 Ratio Chrysler 8.75

(Chrysler 300 1969-70, Town & Country 1969-74, Newport 1969-74, New Yorker 1969-74, Imperial 1969-74; Dodge Charger 1969-70, Challenger 1970-74 + 23 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

6903711
4 reviews
Sale Price

$398.66

3 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Richmond Gear 6903711 is a high-quality ring and pinion gear set designed for Chrysler 8.75-inch rear differentials. This street gear set features a 3.55:1 gear ratio, providing an excellent balance between acceleration and fuel economy for street-driven vehicles.

Key Features:

  • 3.55:1 gear ratio for improved performance and drivability
  • Engineered specifically for Chrysler 8.75-inch rear axles
  • Manufactured from high-strength steel alloys for durability
  • Precision-machined gears for quiet operation and long service life
  • Designed for street performance applications

Richmond Gear is known for producing premium quality drivetrain components that meet or exceed OEM specifications. This ring and pinion set is ideal for enthusiasts looking to optimize their gear ratio for better throttle response, improved acceleration, or to compensate for larger diameter tires. Professional installation and proper setup with new bearings and installation kit is recommended.

Products specifications

Fits

Chrysler 300 1969-70, Town & Country 1969-74, Newport 1969-74, New Yorker 1969-74, Imperial 1969-74; Dodge Charger 1969-70, Challenger 1970-74, Dart 1969-72, Coronet 1969-71, Polara 1969-73, D100 Pickup 1969-70, Monaco 1969-74 + 18 more models

Calculator

Gear Ratio Calculator

Cover Bolts

10

Installation Kit Included

No

Pinion Gear Teeth

11

Pinion Shaft Diameter (in)

1.875 in.

Pinion Spline Count

10

Quantity

Sold as a set.

Ring and Pinion Ratio

3.55:1

Ring Gear Bolts

12

Ring Gear Diameter (in)

8.750 in.

Ring Gear Rotation

Standard

Ring Gear Teeth

39

Tool

Transmission Lookup

Ring and Pinion Gear Ratio

3.55

Ring Gear Material

8620 Steel

Ring Gear Diameter

8.75

Ring Gear Tooth Quantity

39

Pinion Gear Tooth Quantity

11

Pinion Shaft Diameter

1.875

Ring Gear Bolt Quantity

12

Differential Case Design Type

Chrysler 8.75 (489)

Cover Bolt Quantity

Dropout

Prop 65

WARNING: Cancer - www.p65warnings.ca.gov

Position

Rear

Great SO FAR

Excellent service, incredibly fast shipping and delivery. Would DEFINITELY do business with again.

Easy to deal with, lowest price and included quick shipping.

Amazing prices and amazing shipping speed! Best all around. Will be ordering more soon!

Share icon
Return Policy
Returns are easy at Autoplicity

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy