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 79-0005-1 Pro Gear Ring and Pinion Set 5.43 Ratio Ford 9 Inch

(Ford F-150 1975-86, Mustang 1965-73, Bronco 1966-86, Thunderbird 1955-79, Maverick 1970-77, Galaxie 500 1962-74, F-100 1975-83 + 22 more models)

Part of: Richmond Gear PRO Gear Differential Ring and Pinion Sets

Other options in this family: Richmond Gear 7900171 Richmond Gear 7900801 Richmond Gear 7900431 Richmond Gear 7900451 Richmond Gear 7900791

Manufacturer

Picture for manufacturer Richmond Gear

Part Number

7900051
10 reviews
Sale Price

$745.16

1 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 79-0005-1 Pro Gear Ring and Pinion Set is engineered specifically for race applications where hard launches and severe heat cycling occur. This set features a 5.43:1 gear ratio with 38 ring gear teeth and is designed for Ford 9-inch differentials with 28-spline pinion configuration.

Race-Ready Construction:

  • Manufactured from softer, more malleable 9310 steel alloy for superior resistance to breakage under harsh racing conditions
  • Features up to 6 pounds of rotating weight reduction for improved performance
  • Ground pinion threads for trouble-free installation
  • Special heat treatment process for enhanced strength and durability
  • Precision-cut gears manufactured to 1/1000th of an inch tolerance

Professional Quality:

For over 80 years, Richmond's Double Diamond has signified the highest quality gears in the racing industry. These gear sets are designed for race use only and are proven winners at premier racing events including the Daytona 500 and U.S. Nationals. Each set undergoes rigorous computer-controlled manufacturing from the foundry through final heat treatment to deliver professional-grade performance and reliability.

Note: Installation kit sold separately. Professional installation and proper setup with bearing kit, shims, and gear oil is required for optimal performance and longevity.

Products specifications

Fits

Ford F-150 1975-86, Mustang 1965-73, Bronco 1966-86, Thunderbird 1955-79, Maverick 1970-77, Galaxie 500 1962-74, F-100 1975-83, Fairlane 1957-70, Ranchero 1957-79, Torino 1968-76, Galaxie 1959-67, Gran Torino 1972-76 + 17 more models

Calculator

Gear Ratio Calculator

Cover Bolts

10

Installation Kit Included

No

Pinion Gear Teeth

7

Pinion Shaft Diameter (in)

1.313 in.

Pinion Spline Count

28

Quantity

Sold as a set.

Ring and Pinion Ratio

5.43:1

Ring Gear Bolts

10

Ring Gear Diameter (in)

9.000 in.

Ring Gear Rotation

Standard

Ring Gear Teeth

38

Tool

Transmission Lookup

Pinion Gear Tooth Quantity

7

Pinion Shaft Diameter

1.313

Ring Gear Diameter

9

Ring Gear Tooth Quantity

38

Differential Case Design Type

Ford 9

Ring Gear Bolt Quantity

10

Ring Gear Material

9310 Steel

Ring and Pinion Gear Ratio

5.43

Cover Bolt Quantity

Dropout

Position

Rear

Prop 65

WARNING: Cancer - www.p65warnings.ca.gov

Some parts have very limited information such as left or right or if ball joint is included and so on, other than that the prices and shipping seem fair and the web site is easy to navigate. Thanks Dave

outstanding experience.

good web site

great price and customer service

Order #30897. Ordered on Monday, received on Thursday. Exactly what I needed. Can't ask for anything more. Definitely will look at Autoplicity again when I need more parts!

Paypal payment was a little awkward but it looks like it worked

Easy to use

so far the experience has been great!

Best deals I've found on autoplicity yet. Thanks!

Your prices for Metal Rescue were the best I could find and your shipping was fast, although I screwed up and ordered a quart when I though I ordered a gallon

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