---
product_id: 124459940
title: "EXCEL from Richmond GM85410 Differential Ring and Pinion 4.10 Gear Ratio for GM 8.5\"/8.625\" - Compatible with Buick, Cadillac, Chevrolet, GMC Models 1970-2020"
brand: "richmond"
price: "KD 92.25"
currency: KWD
in_stock: true
reviews_count: 2
category: "Richmond"
url: https://www.desertcart.com.kw/products/124459940-excel-from-richmond-gm85410-differential-ring-and-pinion-4-10
store_origin: KW
region: Kuwait
---

# 10-bolt easy installation 8620 steel for ultimate durability 4.10 gear ratio for power boost EXCEL from Richmond GM85410 Differential Ring and Pinion 4.10 Gear Ratio for GM 8.5"/8.625" - Compatible with Buick, Cadillac, Chevrolet, GMC Models 1970-2020

**Brand:** richmond
**Price:** KD 92.25
**Availability:** ✅ In Stock

## Summary

> ⚙️ Upgrade your GM’s heartbeat — power, precision, and legacy in one gear set!

## Quick Answers

- **What is this?** EXCEL from Richmond GM85410 Differential Ring and Pinion 4.10 Gear Ratio for GM 8.5"/8.625" - Compatible with Buick, Cadillac, Chevrolet, GMC Models 1970-2020 by richmond
- **How much does it cost?** KD 92.25 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.kw](https://www.desertcart.com.kw/products/124459940-excel-from-richmond-gm85410-differential-ring-and-pinion-4-10)

## Best For

- richmond enthusiasts

## Why This Product

- Trusted richmond brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Built to Last:** Crafted from premium 8620 steel, this ring and pinion gear withstands the toughest drives and longest miles.
- • **Hassle-Free Upgrade:** 10-bolt configuration and included instructions make installation straightforward, so you’re back on the road faster.
- • **Trusted Replacement:** Replaces multiple OEM part numbers, offering a versatile, cost-effective solution without compromising quality.
- • **Seamless Compatibility:** Fits GM 8.5"/8.625" differentials across Buick, Cadillac, Chevrolet, GMC & more (1970-2020) — one upgrade for countless classics.
- • **Precision Engineered Power:** Optimized 4.10 gear ratio delivers a perfect balance of acceleration and towing strength for your GM ride.

## Overview

The EXCEL Richmond GM85410 Differential Ring and Pinion features a robust 4.10 gear ratio designed to enhance acceleration and towing for GM 8.5"/8.625" differentials. Made from durable 8620 steel, it ensures long-lasting performance and fits a wide range of Buick, Cadillac, Chevrolet, and GMC models from 1970 to 2020. With a 10-bolt easy-install design and compatibility with multiple OEM part numbers, this gear set offers a reliable, versatile upgrade for enthusiasts seeking both power and precision.

## Description

EXCEL from Richmond RP GM 8.5" 8.6" 4.10 EXL Differential GearItem No.: RP GM 8.5" 8.6" 4.10 EXLApp/Model: GM 8.5 | GM 8.625Key Features:Gear Ratio: 4.10, designed for optimal balance of acceleration and top-end speed.Pinion Gear Tooth Quantity: 10, ideal for providing durability under load.Pinion Shaft Diameter: 1.626 Inch, ensuring superior strength for high-performance applications.Pinion Spline Count: 30, providing a solid connection for the driveshaft.Ring Gear Material: 8620 Steel, built for high strength and wear resistance.Ring Gear Outside Diameter: 8.5 Inch, optimized for greater torque and durability.Ring Gear Tooth Quantity: 41, designed for smooth and efficient power transfer.Cover Bolt Quantity: 10, making installation and maintenance easier.Brand:RichmondApplications/Compatibility by Model:Buick: 1973-1975 Buick Apollo, 1971-1973 Buick Centurion, 1973-1977 Buick Century, 1991-1996 Buick Commercial Chassis, 1971-1990 Buick Electra, 1971-1981 Buick Estate Wagon, 1971-1985 Buick LeSabre, 2004-2007 Buick Rainier, 1973-1977 Buick Regal, 1984-1987 Buick Regal, 1977-1978 Buick Riviera, 1991-1996 Buick Roadmaster, 1970-1972 Buick Skylark, 1975-1979 Buick Skylark.Cadillac: 1987-1992 Cadillac Brougham, 1977-1984 Cadillac DeVille, 1999-2000 Cadillac Escalade, 2002-2013 Cadillac Escalade, 2003-2013 Cadillac Escalade ESV, 2002-2013 Cadillac Escalade EXT, 1977-1987 Cadillac Fleetwood, 1993-1996 Cadillac Fleetwood, 1976-1979 Cadillac Seville.Chevrolet: 2007-2013 Chevrolet Avalanche, 2002-2006 Chevrolet Avalanche 1500, 1970-1975 Chevrolet Bel Air, 1970-1972 Chevrolet Biscayne, 1987-2005 Chevrolet Blazer, 1970-1972 Chevrolet Brookwood, 1977-1986 Chevrolet C10, 1977-1986 Chevrolet C10 Suburban, 1982-1986 Chevrolet C15, 1988-1999 Chevrolet C1500, 1992-1999 Chevrolet C1500 Suburban, 1970-1981 Chevrolet Camaro, 1970-1996 Chevrolet Caprice, 1973-1973 Chevrolet Chevelle, 2007-2013 Chevrolet Colorado, 1973-1977 Chevrolet El Camino, 1996-2013 Chevrolet Express 1500, 1978-1995 Chevrolet G10, 1978-1995 Chevrolet G20, 1971-1985 Chevrolet Impala, 1994-1996 Chevrolet Impala, 1977-1986 Chevrolet K10, 1988-1999 Chevrolet K1500, 1993-1999 Chevrolet K1500 Suburban, 1977-1986 Chevrolet K20, 1988-1991 Chevrolet K2500, 1975-1986 Chevrolet K5 Blazer, 1973-1977 Chevrolet Malibu, 1973-1977 Chevrolet Monte Carlo, 1971-1979 Chevrolet Nova, 1999-2020 Chevrolet Silverado 1500, 2001-2003 Chevrolet Silverado 1500 HD, 2003-2006 Chevrolet SSR, 1995-2013 Chevrolet Suburban 1500, 1995-2013 Chevrolet Tahoe, 2002-2005 Chevrolet Trailblazer, 1987-1987 Chevrolet V10, 1989-1991 Chevrolet V1500 Suburban, 1987-1987 Chevrolet V20.GMC: 1979-1986 GMC C1500, 1988-1999 GMC C1500, 1992-1999 GMC C1500 Suburban, 2004-2012 GMC Canyon, 2002-2009 GMC Envoy, 2002-2006 GMC Envoy XL, 1979-1995 GMC G1500, 1979-1995 GMC G2500, 1970-1991 GMC Jimmy, 1977-1978 GMC K15, 1979-1986 GMC K1500, 1988-1999 GMC K1500, 1992-1999 GMC K1500 Suburban, 1977-1986 GMC K20, 1988-1991 GMC K2500, 1987-1987 GMC R1500, 1996-2013 GMC Savana 1500, 2007-2013 GMC Sierra, 1999-2020 GMC Sierra 1500, 1994-2004 GMC Sonoma, 1992-2013 GMC Yukon, 2000-2013 GMC Yukon XL 1500.Hummer: 2006-2010 Hummer H3, 2009-2010 Hummer H3T.Isuzu: 2003-2008 Isuzu Ascender.Oldsmobile: 1971-1971 Oldsmobile 442, 1970-1984 Oldsmobile 98, 1980-1992 Oldsmobile Custom Cruiser, 1970-1977 Oldsmobile Cutlass, 1985-1987 Oldsmobile Cutlass, 1978-1984 Oldsmobile Cutlass Calais, 1980-1983 Oldsmobile Cutlass Cruiser, 1975-1980 Oldsmobile Cutlass Salon, 1985-1987 Oldsmobile Cutlass Salon, 1970-1987 Oldsmobile Cutlass Supreme, 1971-1985 Oldsmobile Delta 88, 1971-1972 Oldsmobile F85, 1973-1979 Oldsmobile Omega, 1970-1975 Oldsmobile Vista Cruiser.Pontiac: 1971-1981 Pontiac Bonneville, 1987-1989 Pontiac Bonneville, 1971-1981 Pontiac Catalina, 1971-1981 Pontiac Firebird, 1973-1975 Pontiac Grand Am, 1978-1980 Pontiac Grand Am, 1975-1977 Pontiac Grand LeMans, 1971-1977 Pontiac Grand Prix, 1971-1975 Pontiac Grandville, 1972-1973 Pontiac GTO, 1971-1972 Pontiac Laurentian, 1972-1977 Pontiac LeMans, 1976-1986 Pontiac Parisienne, 1977-1979 Pontiac Phoenix, 1971-1977 Pontiac Ventura.Saab: 2005-2009 Saab 9-7x.Type: Ring and Pinion Gear for GM 8.5" & GM 8.625" Differential; 4.10 RatioWarranty Period: 1 Year or 50,000 MilesReplaces the Following:SVL: 2019328USA Standard Gear: 36216American Axle & Manufacturing: 40053031Richmond Gear: 69-0165-1Transtar Industries: 742G730EMotive Gear: G885410, GM10-411, GM10-411ARichmond Gear: SGM8506USA Standard Gear: ZG GM8.5-411Installation Instructions: Included for hassle-free installation.

Review: Perfect - This product was just right. I had not one problem with it. This was everything that I had hoped for and it fit perfectly.
Review: You get what you pay for - Bought this ring and pinion gear set to re-gear my 10 bolt gm 8.5. Purchased it due to the price and the three 5 star reviews it had. Just picked it up from the shop, the mechanic said it had a good pattern but sounded a little rough. He told me there was nothing wrong with it, it just didn't have a quality finish like the other high dollar brands out there which leads to a noisier gear but it could quit down after break in period. After driving it 30 miles home, it did fine. I could feel slight vibration and a more moderate vibration when turning. Everything was put in right with the correct additive for my carrier. I hope once the gear set is broke in that the vibration subsides. Other than that, the gear set they sent did not match the beautiful picture listed as the product. The gear set I got was a darker metal with tons of oil and some small other plastic like adhesive stuck to a few gear teeth. This is why I gave this product just 2 stars. Shipping was fast and simple. I will update this review once break-in process is completed. Update1-Ihave drove 150miles so far and the ring and pinion has quited down a bunch, its non noticeable. I give them 4 stars now and not 5 due to the gear set I received did not look like the picture listed. I ordered the 4.10 for gm 8.5. Hope this honest review has helped. Update2-6k miles, no sound, no vibrations. So far so good!

## Features

- ✅ High-Quality Construction: Manufactured with durable 8620 steel, this GM 8.5"/8.625" differential ring and pinion ensures long-lasting performance and reliability for a variety of GM vehicles.
- ✅ Perfect Fitment: Designed for GM 8.5"/8.625" differentials, this 4.10 ratio ring and pinion is compatible with a wide range of models, including Buick, Cadillac, Chevrolet, and GMC from 1970-2020.
- ✅ Enhanced Gear Ratio: The 4.10 gear ratio provides improved acceleration and towing performance, making it an ideal choice for both street and off-road driving in various GM vehicles.
- ✅ Easy Installation: This differential ring and pinion is engineered for easy installation in GM 8.5"/8.625" axles, with a 10-bolt configuration, ensuring a hassle-free upgrade for your vehicle's drivetrain.
- ✅ Replaces Multiple Part Numbers: The GM85410 part number replaces several OEM numbers (SVL: 2019328, Motive Gear: G885410, Richmond Gear: 69-0165-1), offering versatility and a cost-effective solution.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003TPWKXI |
| Best Sellers Rank | #1,092,863 in Automotive ( See Top 100 in Automotive ) #224 in Automotive Replacement Differential Rings & Pinions |
| Brand | Richmond |
| Customer Reviews | 4.4 4.4 out of 5 stars (14) |
| Date First Available | June 23, 2010 |
| Exterior | Machined |
| Is Discontinued By Manufacturer | No |
| Item Weight | 18.1 pounds |
| Item model number | GM85410 |
| Manufacturer | EXCel |
| Manufacturer Part Number | GM85410 |
| Model | Ring and Pinion |
| OEM Part Number | GM85410 |
| Product Dimensions | 11 x 15.25 x 5.25 inches |

## Images

![EXCEL from Richmond GM85410 Differential Ring and Pinion 4.10 Gear Ratio for GM 8.5"/8.625" - Compatible with Buick, Cadillac, Chevrolet, GMC Models 1970-2020 - Image 1](https://m.media-amazon.com/images/I/51xs1hzc-OL.jpg)
![EXCEL from Richmond GM85410 Differential Ring and Pinion 4.10 Gear Ratio for GM 8.5"/8.625" - Compatible with Buick, Cadillac, Chevrolet, GMC Models 1970-2020 - Image 2](https://m.media-amazon.com/images/I/616O0TNEh3L.jpg)
![EXCEL from Richmond GM85410 Differential Ring and Pinion 4.10 Gear Ratio for GM 8.5"/8.625" - Compatible with Buick, Cadillac, Chevrolet, GMC Models 1970-2020 - Image 3](https://m.media-amazon.com/images/I/61Slz7LXd+L.jpg)
![EXCEL from Richmond GM85410 Differential Ring and Pinion 4.10 Gear Ratio for GM 8.5"/8.625" - Compatible with Buick, Cadillac, Chevrolet, GMC Models 1970-2020 - Image 4](https://m.media-amazon.com/images/I/61uBBPtz1AL.jpg)
![EXCEL from Richmond GM85410 Differential Ring and Pinion 4.10 Gear Ratio for GM 8.5"/8.625" - Compatible with Buick, Cadillac, Chevrolet, GMC Models 1970-2020 - Image 5](https://m.media-amazon.com/images/I/71SoXsEYK1L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect
*by P***S on December 11, 2022*

This product was just right. I had not one problem with it. This was everything that I had hoped for and it fit perfectly.

### ⭐⭐⭐⭐ You get what you pay for
*by J***G on August 10, 2019*

Bought this ring and pinion gear set to re-gear my 10 bolt gm 8.5. Purchased it due to the price and the three 5 star reviews it had. Just picked it up from the shop, the mechanic said it had a good pattern but sounded a little rough. He told me there was nothing wrong with it, it just didn't have a quality finish like the other high dollar brands out there which leads to a noisier gear but it could quit down after break in period. After driving it 30 miles home, it did fine. I could feel slight vibration and a more moderate vibration when turning. Everything was put in right with the correct additive for my carrier. I hope once the gear set is broke in that the vibration subsides. Other than that, the gear set they sent did not match the beautiful picture listed as the product. The gear set I got was a darker metal with tons of oil and some small other plastic like adhesive stuck to a few gear teeth. This is why I gave this product just 2 stars. Shipping was fast and simple. I will update this review once break-in process is completed. Update1-Ihave drove 150miles so far and the ring and pinion has quited down a bunch, its non noticeable. I give them 4 stars now and not 5 due to the gear set I received did not look like the picture listed. I ordered the 4.10 for gm 8.5. Hope this honest review has helped. Update2-6k miles, no sound, no vibrations. So far so good!

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*Product available on Desertcart Kuwait*
*Store origin: KW*
*Last updated: 2026-02-02*