---
product_id: 55807710
title: "- EXCEL GM85456, Differential Ring & Pinion, For GM 8.5\"/8.625\", Gear Ratio: 4.56, 10-Bolt, 30 Spline, 9 Pinion & 41 Ring Tooth –Fits Chevrolet, GMC, Cadillac & More, Replaces USA Standard ZG GM8.5-456"
brand: "richmond"
price: "₨190722"
currency: LKR
in_stock: true
reviews_count: 7
url: https://www.desertcart.lk/products/55807710-excel-gm85456-differential-ring-and-pinion-for-gm-8-5
store_origin: LK
region: Sri Lanka
---

# Optimal Fit Durable Design Precision Engineering - EXCEL GM85456, Differential Ring & Pinion, For GM 8.5"/8.625", Gear Ratio: 4.56, 10-Bolt, 30 Spline, 9 Pinion & 41 Ring Tooth –Fits Chevrolet, GMC, Cadillac & More, Replaces USA Standard ZG GM8.5-456

**Brand:** richmond
**Price:** ₨190722
**Availability:** ✅ In Stock

## Summary

> 🔧 Gear Up for Greatness!

## Quick Answers

- **What is this?** - EXCEL GM85456, Differential Ring & Pinion, For GM 8.5"/8.625", Gear Ratio: 4.56, 10-Bolt, 30 Spline, 9 Pinion & 41 Ring Tooth –Fits Chevrolet, GMC, Cadillac & More, Replaces USA Standard ZG GM8.5-456 by richmond
- **How much does it cost?** ₨190722 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/55807710-excel-gm85456-differential-ring-and-pinion-for-gm-8-5)

## 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

- • **Synthetic Oil Ready:** Maximize protection and performance with Richmond Gear Synthetic Gear Oil.
- • **Lightweight Powerhouse:** Weighing in at just 19.1 lbs, this gear set enhances performance without the bulk.
- • **Engineered for Excellence:** Crafted by Richmond Gear, ensuring top-tier quality and reliability.
- • **Unleash Your Ride's Potential:** Transform your vehicle's performance with Richmond's cutting-edge gear technology.
- • **Perfectly Sized for Performance:** Dimensions of 15 x 11 x 5.25 inches for a seamless fit in your vehicle.

## Overview

The Richmond GM85456 Ring and Pinion Gear Set is a high-performance automotive component designed to enhance your vehicle's efficiency and power. Manufactured by Richmond Gear, this durable set weighs 19.1 pounds and measures 15 x 11 x 5.25 inches, ensuring a perfect fit. It's engineered for optimal performance and is compatible with Richmond Gear Synthetic Gear Oil for maximum protection.

## Description

This item is designed to fit specific vehicles. Please ensure correct part fitment before purchasing this project. Contact the seller directly for additional product information and availability.bProduct DescriptionbbrGEAR GM 10 8.5 4.56

## Features

- EXCel Ring and Pinion
- made by Richmond Gear
- Clean all parts before you start assembly
- For maximum protection and performance use Richmond Gear Synthetic Gear Oil

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Richmond Gear/Motive Gear |
| Brand | Richmond |
| Item Weight | 19.1 pounds |
| Product Dimensions | 15 x 11 x 5.25 inches |
| Item model number | GM85456 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | GM85456 |
| OEM Part Number | GM85456 |

## Images

![- EXCEL GM85456, Differential Ring & Pinion, For GM 8.5"/8.625", Gear Ratio: 4.56, 10-Bolt, 30 Spline, 9 Pinion & 41 Ring Tooth –Fits Chevrolet, GMC, Cadillac & More, Replaces USA Standard ZG GM8.5-456 - Image 1](https://m.media-amazon.com/images/I/61vNayYEtBL.jpg)

## Questions & Answers

**Q: Will this fit a 2007 Ram 1500?**
A: The Richmond GM85373 Ring and Pinion Gear Set will not fit a 2007 Ram 1500. It is designed for a 2007 Chevrolet Silverado 1500, GMC Sierra 1500, and Cadillac Escalade. The 2007 Ram 1500 has a different ring and pinion gear set.

Here is a list of ring and pinion gear sets that will fit a 2007 Ram 1500:

Gearstar 35-1100-48 Ring and Pinion Gear Set
Yukon Gear & Axle 52-1100-48 Ring and Pinion Gear Set
Melling 15110048 Ring and Pinion Gear Set
When choosing a ring and pinion gear set, it is important to check the fitment chart for your specific vehicle. This will ensure that you get the right size and type of gears for your needs.

**Q: Does it fit a 66 chevelle 10 bolt 8.5**
A: We recommend you make sure the axle is a 8.5. In 1966 the Chevelle had a 10 bolt 8.2 rear axle stock. Best way to tell is your pinion spline to the yoke. If it is 25 spline you have the 8.2, if it is 30 spline you have the 8.5 and someone has changed it.
 Thank you

**Q: Will this fit a 2017 gmc Sierra**
A: Yes, with the 10 bolt 8.6 rear axle. 
 Thank you

**Q: Will this fit a 1974 camaro**
A: if your car still has the original  differential it will fit ,if it has a 2.41 or 2.56 ratio it will need a 3 series carrier or posi for the correctt ring gear offset

## Customer Reviews

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    You get what you pay for
  

*by J***G on Reviewed in the United States 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!

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Perfect
  

*by P***S on Reviewed in the United States 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.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Five Stars
  

*by A***R on Reviewed in the United States on April 14, 2016*

Installed Summer before last and it still works perfectly. Just make sure you know how to install these gears.

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-03-11*