---
product_id: 107102900
title: "Motive Gear GM10-342A Differential Ring & Pinion Set, 3.42 Ratio, 30-Spline, 10-Bolt, Fits GM 8.5\"/8.625\" Compatible for Chevrolet, GMC, Cadillac, Buick Models, Pontiac, Oldsmobile, GMC,Hummer, Isuzu"
brand: "motive gear"
price: "60468 kr"
currency: ISK
in_stock: true
reviews_count: 9
category: "Motive Gear"
url: https://www.desertcart.is/products/107102900-motive-gear-gm10-342a-differential-ring-and-pinion-set-3
store_origin: IS
region: Iceland
---

# 3.42 gear ratio for optimized torque Precision 30-spline, 10-bolt fit 8620 heat-treated steel for durability Motive Gear GM10-342A Differential Ring & Pinion Set, 3.42 Ratio, 30-Spline, 10-Bolt, Fits GM 8.5"/8.625" Compatible for Chevrolet, GMC, Cadillac, Buick Models, Pontiac, Oldsmobile, GMC,Hummer, Isuzu

**Brand:** motive gear
**Price:** 60468 kr
**Availability:** ✅ In Stock

## Summary

> 🚗 Gear up your GM ride with precision power and legendary durability!

## Quick Answers

- **What is this?** Motive Gear GM10-342A Differential Ring & Pinion Set, 3.42 Ratio, 30-Spline, 10-Bolt, Fits GM 8.5"/8.625" Compatible for Chevrolet, GMC, Cadillac, Buick Models, Pontiac, Oldsmobile, GMC,Hummer, Isuzu by motive gear
- **How much does it cost?** 60468 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/107102900-motive-gear-gm10-342a-differential-ring-and-pinion-set-3)

## Best For

- motive gear enthusiasts

## Why This Product

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

## Key Features

- • **Unmatched Durability:** Crafted from heat-treated 8620 steel to withstand heavy loads and harsh driving conditions without compromise.
- • **Wide GM Compatibility:** Fits a broad range of Chevrolet, GMC, Cadillac, Buick, Pontiac, and Oldsmobile models from 1970 to 2020—your one-stop upgrade.
- • **Precision Engineered Fit:** Seamlessly replaces OE parts with a perfect 30-spline, 10-bolt design—no guesswork, just flawless installation.
- • **Confidence-Backed Warranty:** Drive worry-free with a 1-year/50,000-mile warranty trusted by professional mechanics and enthusiasts alike.
- • **Torque-Optimized 3.42 Ratio:** Unlock smoother power delivery and enhanced acceleration tailored for your GM 8.5"/8.625" differential.

## Overview

The Motive Gear GM10-342A Differential Ring & Pinion Set is a precision-engineered drivetrain upgrade featuring a 3.42 gear ratio and 30-spline, 10-bolt fitment. Constructed from heat-treated 8620 steel, it delivers superior strength, smooth torque transfer, and long-lasting durability. Compatible with a wide range of GM vehicles from 1970-2020, this OE direct-fit set ensures easy installation and is backed by a 1-year/50,000-mile warranty, making it the trusted choice for performance and reliability.

## Description

Motive Gear GM10-342A Ring & Pinion Set – Upgrade your GM 8.5"/8.625" differential with this precision-engineered 3.42 ratio ring and pinion set. Built from high-quality 8620 steel, this set ensures excellent performance, durability, and a smooth driving experience.Features & Benefits:Premium Build Quality: Manufactured from 8620 steel for high durability and reliability.Optimized Gear Ratio: 3.42 ratio improves torque distribution, enhancing vehicle performance.Perfect Fitment: Designed for GM 8.5"/8.625" 10-bolt differentials with 30-spline pinion.Wide Compatibility: Fits Chevrolet, GMC, Cadillac, and Buick models (1970-2020) for various applications.Reliable & Efficient: Reduces noise, enhances power transfer, and extends differential lifespan.Applications & Compatibility With:🔹 Buick:Apollo (1973-1975)Centurion (1971-1973)Century (1973-1977)Commercial Chassis (1991-1996)Electra (1971-1990)Estate Wagon (1971-1981)LeSabre (1971-1985)Rainier (2004-2007)Regal (1973-1977, 1984-1987)Riviera (1977-1978)Roadmaster (1991-1996)Skylark (1970-1972, 1975-1979)🔹 Cadillac:Brougham (1987-1992)DeVille (1977-1984)Escalade (1999-2000, 2002-2013)Escalade ESV (2003-2013)Escalade EXT (2002-2013)Fleetwood (1977-1987, 1993-1996)Seville (1976-1979)🔹 Chevrolet:Avalanche (2007-2013)Avalanche 1500 (2002-2006)Bel Air (1970-1975)Biscayne (1970-1972)Blazer (1987-2005)Brookwood (1970-1972)C10 (1977-1986)C10 Suburban (1977-1986)C15 (1982-1986)C1500 (1988-1999)C1500 Suburban (1992-1999)Camaro (1970-1981)Caprice (1970-1996)Chevelle (1973)Colorado (2007-2013)El Camino (1973-1977)Express 1500 (1996-2013)G10 (1978-1995)G20 (1978-1995)Impala (1971-1985, 1994-1996)K10 (1977-1986)K10 Suburban (1977-1986)K1500 (1988-1999)K1500 Suburban (1993-1999)K20 (1977-1986)K20 Suburban (1977-1986)K2500 (1988-1991)K5 Blazer (1975-1986)Malibu (1973-1977)Monte Carlo (1973-1977)Nova (1971-1979)R10 (1987)R10 Suburban (1987-1988)R1500 Suburban (1989-1991)S10 (1994-2004)S10 Blazer (1983-1994, 1991-1994)Silverado 1500 (1999-2020)Silverado 1500 Classic (2007)Silverado 1500 HD (2001-2003, 2005-2006)Silverado 1500 HD Classic (2007)SSR (2003-2006)Suburban 1500 (1995-2013)Tahoe (1995-2013)Trailblazer (2002-2005, 2007-2009)Trailblazer EXT (2002-2006)🔹 GMC:C1500 (1979-1986, 1988-1999)C1500 Suburban (1979-1986, 1992-1999)Canyon (2004-2012)Envoy (2002-2009)Envoy XL (2002-2006)Envoy XUV (2004-2005)G1500 (1979-1995)G2500 (1979-1995)Jimmy (1970-1991, 1980-2005)K15 (1977-1978)K15 Suburban (1977-1978)K1500 (1979-1986, 1988-1999)K1500 Suburban (1979-1986, 1992-1999)K2500 (1979-1986, 1988-1991)K2500 Suburban (1979-1986)R1500 (1987)R1500 Suburban (1987-1991)Savana 1500 (1996-2013)Sierra (2007-2013)Sierra 1500 (1999-2020)Sierra 1500 Classic (2007)Sonoma (1994-2004)Yukon (1992-2013)Yukon XL 1500 (2000-2013)🔹 Other Brands:Hummer H3 (2006-2010)Hummer H3T (2009-2010)Isuzu Ascender (2003-2008)Oldsmobile 442 (1971)Oldsmobile 98 (1970-1984)Oldsmobile Cutlass (1970-1977, 1985-1987)Oldsmobile Cutlass Supreme (1970-1987)Oldsmobile Delta 88 (1971-1985)Pontiac Bonneville (1971-1981, 1987-1989)Pontiac Firebird (1971-1981)Pontiac Grand Prix (1971-1977)Pontiac LeMans (1972-1977)Saab 9-7x (2005-2009)Replaces For:American Axle & Manufacturing: 40053029Richmond Gear: 49-0278-1Motive Gear: G885342, GM10-342EXCEL from Richmond: GM85342🛡 Warranty & Why Choose Motive Gear?🛡 Warranty: 1 Year / 50,000 Miles – Ensuring quality and longevity.⚙ Industry-Leading Performance: Trusted brand for premium differential components.🔧 Precision Engineering: Smooth operation, enhanced efficiency, and long-lasting reliability.

Review: Worth it. - About 50 smoke shows and 7,000 miles. Everything good so far.
Review: Great fit - Works as it should, and described correctly. I recommend

## Features

- ✅ Precision Fit & Performance – Motive Gear 3.42 Ring & Pinion Set fits GM 8.5"/8.625" (10-bolt), ensuring superior strength, smooth operation & optimized torque transfer for daily driving & performance needs.
- ✅ Durable 8620 Steel Construction – Manufactured from high-strength 8620 steel, heat-treated for extreme durability, wear resistance & longevity, providing reliable performance under heavy loads & tough conditions.
- ✅ OE Direct Fit & Easy Installation – Designed for seamless installation, fits GM 8.5"/8.625" differentials requiring a 2.73+ ratio carrier, replacing OE parts with precision engineering for factory-like performance.
- ✅ Compatible with Multiple GM Vehicles – Fits Chevrolet, GMC, Cadillac, Buick, Pontiac & Oldsmobile models (1970-2020), including Silverado, Tahoe, Blazer, Camaro, Yukon, Escalade, Impala & more—check full list!
- ✅ 1-Year/50,000-Mile Warranty – Backed by a trusted warranty for worry-free performance. Motive Gear ensures top-tier quality, making it the go-to choice for professional mechanics & performance enthusiasts. 🚗

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000S6BW4E |
| Best Sellers Rank | #651,898 in Automotive ( See Top 100 in Automotive ) #110 in Automotive Replacement Differential Rings & Pinions |
| Brand | Motive Gear |
| Customer Reviews | 4.5 4.5 out of 5 stars (38) |
| Date First Available | June 19, 2007 |
| Exterior | Machined |
| Item Weight | 17.7 pounds |
| Item model number | GM10-342A |
| Manufacturer | Motive Gear |
| Manufacturer Part Number | GM10-342A |
| Model | Motive Gear GM10-342A Differential Ring and Pinion |
| OEM Part Number | GM10-342A |
| Product Dimensions | 15.5 x 11 x 5.25 inches |

## Images

![Motive Gear GM10-342A Differential Ring & Pinion Set, 3.42 Ratio, 30-Spline, 10-Bolt, Fits GM 8.5"/8.625" Compatible for Chevrolet, GMC, Cadillac, Buick Models, Pontiac, Oldsmobile, GMC,Hummer, Isuzu - Image 1](https://m.media-amazon.com/images/I/61gAXz4g-UL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Worth it.
*by J***E on December 22, 2025*

About 50 smoke shows and 7,000 miles. Everything good so far.

### ⭐⭐⭐⭐⭐ Great fit
*by S***O on October 31, 2025*

Works as it should, and described correctly. I recommend

### ⭐⭐⭐⭐⭐ Easy going!
*by C***T on August 9, 2024*

Just finished my rear end with these gears. My pinion shim was gone since the last pinion gear welded it to the bearing so I had to Guess at about .029 and it turned out pretty good! Set at around 21 lbs of preload and about .007 of backlash with the original carrier shims. So far so good! Heel and toe were north and south but in the middle of the line so I’m rolling with it. did also used the proper oil for break in of 80w-90! Great buy at a great price

## Frequently Bought Together

- Motive Gear GM10-342A Differential Ring & Pinion Set, 3.42 Ratio, 30-Spline, 10-Bolt, Fits GM 8.5"/8.625" Compatible for Chevrolet, GMC, Cadillac, Buick Models, Pontiac, Oldsmobile, GMC,Hummer, Isuzu
- USA Standard Gear (ZK GM8.6) Master Overhaul Kit for GM 8.6 Differential
- Motive Gear GM8.6L Differential Carrier

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-03-01*