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Vivid Racing Gear Select the year of your Buick Centurion:
If you're looking to beef up your ride's drivetrain, the Richmond Gear 3.55 Ring and Pinion for GM 8.875" differentials is a solid choice. This isn’t just any gear set; it’s built for those who want to feel the difference in performance, whether you're cruising down the street or hitting the track. Richmond has been in the game long enough to know what works, and their gear sets have proven themselves in some serious competitions, including the Daytona 500 and U.S. Nationals. It’s no wonder people trust Richmond when it comes to performance parts.
Now, let’s dive into the specs because that’s what really matters, right? This set features a gear ratio of 3.55, which is a nice balance for both street driving and spirited runs. It comes with a ring gear outside diameter of 8.875 inches and is made from tough 8620 steel—so you know it’s built to last. The pinion gear has 11 teeth and a diameter of 1.625 inches, along with a 30-spline count, which means it’ll fit snugly and handle the torque without breaking a sweat.
Installation is straightforward, thanks to the 12 cover bolts and 12 ring gear bolts that keep everything securely in place. Just keep in mind that this setup is designed for a differential carrier break of 3.07 to 3.73 ratio, so make sure your ride's compatible. It fits a range of classic GM models, including:
- Buick Centurion (1971-1972)
- Chevrolet Camaro (1967-1972)
- Oldsmobile Cutlass (1971-1972)
- Pontiac GTO (1970-1972)
- And many more...
Whether you're restoring a classic or just want to give your daily driver a little boost, this Richmond Gear set is a reliable option that won't let you down. It’s all about enhancing that driving experience, and with Richmond, you're not just getting a part; you're getting a piece of racing history. So, if you’re ready to take your ride to the next level, this gear set might just be what you need.
Notes:
- For GM 8.875" (12 Bolt)
- 3.55 Ratio
- Requires a 3.07 to 3.73 Ratio Carrier
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
1971-1972 Buick Centurion |
Centurion | 1971-1972 |
|
1965-1972 Buick Electra |
Electra | 1965-1972 |
|
1971-1972 Buick Estate Wagon |
Estate Wagon | 1971-1972 |
|
1970-1972 Buick GS |
GS | 1970-1972 |
|
1968-1969 Buick GS 350 |
GS 350 | 1968-1969 |
|
1968-1969 Buick GS 400 |
GS 400 | 1968-1969 |
|
1970-1972 Buick GS 455 |
GS 455 | 1970-1972 |
|
1965-1967 Buick Gran Sport |
Gran Sport | 1965-1967 |
|
1971-1972 Buick LeSabre |
LeSabre | 1971-1972 |
|
1971-1972 Buick Skylark |
Skylark | 1971-1972 |
|
1965-1969 Buick Special |
Special | 1965-1969 |
|
1964-1972 Buick Sportwagon |
Sportwagon | 1964-1972 |
|
1965-1970 Chevrolet Bel Air |
Bel Air | 1965-1970 |
|
1967-1972 Chevrolet Camaro |
Camaro | 1967-1972 |
|
1966-1972 Chevrolet Caprice |
Caprice | 1966-1972 |
|
1964-1973 Chevrolet Chevelle |
Chevelle | 1964-1973 |
|
1965-1968 Chevrolet Chevy II |
Chevy II | 1965-1968 |
|
1965-1972 Chevrolet El Camino |
El Camino | 1965-1972 |
|
1965-1972 Chevrolet Impala |
Impala | 1965-1972 |
|
1965-1967 Chevrolet Malibu |
Malibu | 1965-1967 |
|
1970-1972 Chevrolet Monte Carlo |
Monte Carlo | 1970-1972 |
|
1969-1972 Chevrolet Nova |
Nova | 1969-1972 |
|
1971-1972 GMC Sprint |
Sprint | 1971-1972 |
|
1971 Oldsmobile 442 |
442 | 1971 |
|
1965-1972 Oldsmobile 98 |
98 | 1965-1972 |
|
1971-1972 Oldsmobile Cutlass |
Cutlass | 1971-1972 |
|
1967-1968 Oldsmobile Delmont 88 |
Delmont 88 | 1967-1968 |
|
1965-1972 Oldsmobile Delta 88 |
Delta 88 | 1965-1972 |
|
1965-1966 Oldsmobile Jetstar 88 |
Jetstar 88 | 1965-1966 |
|
1965-1966 Oldsmobile Starfire |
Starfire | 1965-1966 |
|
1967-1972 Oldsmobile Vista Cruiser |
Vista Cruiser | 1967-1972 |
|
1965-1972 Pontiac Bonneville |
Bonneville | 1965-1972 |
|
1967-1972 Pontiac Firebird |
Firebird | 1967-1972 |
|
1970-1972 Pontiac GTO |
GTO | 1970-1972 |
|
1970 Pontiac Tempest |
Tempest | 1970 |
Richmond Gears is a company that was founded in 1915 and is based in Liberty, South Carolina, that specializes in manufacturing high-quality drivetrain components for the automotive industry. They have been in the business for more than 80 years and have one of the most comprehensive parts lists in the market.
Today, they are considered one of the go-to brands of many professional mechanics, DIY customers, and tuners.
Continuous DevelopmentThe company never stops in its search for innovative ways to improve its products. It is why many hot rod builders and racers around the world choose Richmond Gears. It allows them to customize their drivetrain according to their need.
Designed to PerformEach product is engineered to perform even in the harshest condition. Every component is precisely cut using the most advanced cutting tool in the industry. It allows them to create pieces with very tight tolerances and guarantees that perfect fit.
Purchase Richmond Gears At Vivid RacingIf you are in the market for high-quality drivetrain components and want something that could take the abuse of high horsepower engines, then Richmond Gears is the brand for you.
It offers ring and pinion sets and transmissions, and accessories, synthetic gear oils, installation kits, instructional videos, spools and mini-spools, transmission fluids, and rear-end lubes. They also have parts for vehicles made from the 1940s, making them a favorite brand of many classic car owners.
To know more about Richmond Gears, visit Vivid Racing and check out their list of offers that fit your needs.
Our commitment to quality is backed by some of the best warranty coverage in the industry. Richmond Performance products are warranted against defects for a period of two (2) year under normal driving conditions.
Installation Instructions
Click to view the Installation Instructions here
| Sale price | None |
| Wholesale price | $331.95 |
| Shipping |
Weight: 6.00 Length: ? Width: ? Height: ? |
| Product Added At | Thursday 31 October, 2019 |
| Product Modified At | Tuesday 13 May, 2025 |
| Imported By | ETLOverride |
| Last Edited By | renaliza.enriquez@gmail.com |
| View In Admin |
| Vendor | Inv | Cost | Retail | Jobber | MAP | Core | Updated | |||
|---|---|---|---|---|---|---|---|---|---|---|
| Midwest Truck & Auto Parts | $281.31 | $547.14 | $547.14 | $478.98 | ? | 2025-05-13 19:32:22 |
