Go-Parts
Cart 0
Your cart is empty
Add an item to see it appear here.

Differential Ring and Pinion - Front or Rear (Richmond) for 1970-2020 Buick, Cadillac, Chevrolet, GMC, Hummer, Isuzu, Oldsmobile, Pontiac, & Saab NEW

Out of Stock
$ 465 .35

Product Notes

Position: Front or Rear
For GM 8.5"/8.625" (10 Bolt); 4.56 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier
Differential Ring and Pinion
Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND!
Brand: Richmond
Condition: New
LIFE
TIME
Lifetime Warranty Included
This part is backed by our industry-leading lifetime warranty. Shop with total confidence.
100%money-back 120-dayreturns OE-gradequality
Wrenchy the Robot

Meet Wrenchy - The Amazing Parts Assistant!

Voice or type your vehicle details and Wrenchy will confirm fitment in seconds.

Specifications & Info


Attribute Value
Differential Carrier Break 2.73 Ratio And Higher
Differential Case Design Type Gm 8.5, Gm 8.625
Gear Ratio 4.56
Pinion Shaft Diameter 1.626
Pinion Spline Count 30
Ring Gear Material 8620 Steel
Ring Gear Outside Diameter 8.5
Ring Gear Rotation Standard
Ring Gear Tooth Quantity 41

Vehicle Fitment Guide

This part fits the following vehicles:

Make Models
Buick Apollo, Centurion, Century, Commercial Chassis, Electra, Estate Wagon, LeSabre, Rainier, Regal, Riviera, Roadmaster, Skylark
Cadillac Brougham, DeVille, Escalade, Escalade ESV, Escalade EXT, Fleetwood, Seville
Chevrolet Avalanche, Avalanche 1500, Bel Air, Biscayne, Blazer, Brookwood, C10, C10 Suburban, C15, C1500, C1500 Suburban, Camaro, Caprice, Chevelle, Colorado, El Camino, Express 1500, G10, G20, Impala, K10, K10 Suburban, K1500, K1500 Suburban, K20, K20 Suburban, K2500, K5 Blazer, Malibu, Monte Carlo, Nova, R10, R10 Suburban, R1500 Suburban, S10, S10 Blazer, Silverado 1500, Silverado 1500 Classic, Silverado 1500 HD, Silverado 1500 HD Classic, SSR, Suburban 1500, Tahoe, Trailblazer, Trailblazer EXT, V10, V10 Suburban, V1500 Suburban, V20, V20 Suburban, V2500 Suburban
GMC C1500, C1500 Suburban, Canyon, Envoy, Envoy XL, Envoy XUV, G1500, G2500, Jimmy, K15, K15 Suburban, K1500, K1500 Suburban, K25, K25 Suburban, K2500, K2500 Suburban, R1500, R1500 Suburban, Savana 1500, Sierra, Sierra 1500, Sierra 1500 Classic, Sonoma, Sprint, Typhoon, V1500, V1500 Suburban, V2500, V2500 Suburban, Yukon, Yukon XL 1500
Hummer H3, H3T
Isuzu Ascender
Oldsmobile 442, 98, Custom Cruiser, Cutlass, Cutlass Calais, Cutlass Cruiser, Cutlass Salon, Cutlass Supreme, Delta 88, F85, Omega, Vista Cruiser
Pontiac Bonneville, Catalina, Firebird, Grand Am, Grand LeMans, Grand Prix, Grandville, GTO, Laurentian, LeMans, Parisienne, Phoenix, Ventura
Saab 9-7x

This is a universal part that fits 4,646 vehicle configurations across 9 makes.

Verify before ordering — please confirm your vehicle's year, make, model and sub-model specifications before placing your order. If anything is unclear, our customer service team is available to help.

Policies

Shipping Information

We offer fast, reliable shipping on all orders:

  • Ships to all countries via US Postal Service Priority Mail.
  • Most orders ship within 1 business day.
  • Delivery time: 1-4 business days after shipment.
  • International shipping available, including APO/FPO addresses.
  • Tracking information provided for all shipments.
  • Additional handling fees may apply for oversized/overweight packages.

Return Policy

We want you to be 100% satisfied with your purchase. That's why we offer:

  • 120-Day Returns - Return any part within 120 days from date of receipt.
  • Must obtain RMA (Return Merchandise Authorization) number before returning.
  • Parts must be in original condition, uninstalled, unaltered, and in original packaging.
  • Important: Electrical parts are not returnable if unsealed.
  • Please inspect parts upon arrival and notify us within 5 days of receiving incorrect or damaged parts.
  • Refunds processed after warehouse receives return and credited to original payment method.

Warranty

This part comes with a limited lifetime warranty. Warranty begins on the original purchase date.

Warranty does NOT cover:

  • Shipping costs or labor expenses.
  • Installation errors.
  • Parts used for racing.
  • Commercial vehicle parts.
Richmond Gear is the leading manufacturer of professional quality, high-performance drivetrain products. Our complete line of products ranges from high performance ring-and-pinion sets for serious street and racing applications to torque-hungry manual transmissions and components. Richmond Gear products have been winners both at the Daytona 500 and U.S. Nationals for decades. WINNERS RUN RICHMOND!

Interchange Parts

Brand Part Number
American Axle & Manufacturing 40053802
EXCEL from Richmond GM85456
Motive Gear G885456
Motive Gear GM10-456

Fits Years: 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020

Why Millions Choose Go-Parts

Your Go-To Place
for auto parts.

In operation since 2007. Trusted by over a million DIYers, mechanics, and body shops across all 50 states.

100%
Money-Back Guarantee

Shop With Total Confidence

If it doesn't fit, we make it right. No gimmicks, no fine print.

120
Day Return Window

4× the Industry Standard

Most retailers stop at 30 days. We give you a full four months to install, test, and return for a 100% refund — return shipping on us.

NEW
Direct-Fit Replacement

Engineered To OEM Specs

Brand-new aftermarket parts from trusted suppliers — built to original-equipment specifications so they fit and function like the factory unit, at a fraction of the price.

What buyers are saying.

★★★★★ 4.9 1,451 verified reviews

Racing Partner Videos

×

Search by Vehicle

1
2
3
Added to cart · Part