---
product_id: 78685224
title: "CHEVY GM 8.5\" 10-Bolt Ring and Pinion 3.42 Ratio Gears & Master Bearing/Install Kit"
brand: "qp"
price: "€ 479.90"
currency: EUR
in_stock: true
category: "Qp"
url: https://www.desertcart.fr/products/78685224-chevy-gm-8-5-10-bolt-ring-and-pinion-3
store_origin: FR
region: France
---

# 8620 heat-treated alloy steel 3.42 gear ratio precision Complete master bearing & install kit CHEVY GM 8.5" 10-Bolt Ring and Pinion 3.42 Ratio Gears & Master Bearing/Install Kit

**Brand:** qp
**Price:** € 479.90
**Availability:** ✅ In Stock

## Summary

> ⚙️ Upgrade your ride with precision power and rock-solid reliability!

## Quick Answers

- **What is this?** CHEVY GM 8.5" 10-Bolt Ring and Pinion 3.42 Ratio Gears & Master Bearing/Install Kit by qp
- **How much does it cost?** € 479.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/78685224-chevy-gm-8-5-10-bolt-ring-and-pinion-3)

## Best For

- qp enthusiasts

## Why This Product

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

## Key Features

- • **Precision 3.42 Gear Ratio:** Optimized for smooth power delivery and enhanced drivability
- • **Trusted Quality & Warranty:** Backed by a 1-year warranty and a 4.3-star rating from real users
- • **Stock Carrier Compatibility:** Designed specifically for GM 8.5" 10-bolt stock carriers—no guesswork
- • **Heat-Treated 8620 Alloy Steel:** Durability that withstands high torque and long-term wear
- • **All-Inclusive Installation Kit:** Everything you need—bearings, seals, shims, bolts, and more for a seamless upgrade

## Overview

The CHEVY GM 8.5" 10-Bolt Ring and Pinion 3.42 Ratio Gears with Master Bearing/Install Kit delivers premium performance with its heat-treated 8620 alloy steel construction and precise 3.42 gear ratio. This comprehensive kit includes all necessary components for installation on stock GM 8.5" 10-bolt carriers, ensuring a smooth, durable upgrade backed by a 1-year warranty and trusted by a strong user base.

## Description

* BRAND NEW GM 8.5" 10-Bolt Ring & Pinion & Master Bearing/Installaton Kit * Premium Quality Gear - Ratio: 3.42* * Manufactured with 8620 Heat-Treated Material * Master Bearing/Installation Kit Includes: Carrier Bearings/Races, Pinion Bearings/Races, Pinion Seal, Pinion Nut, Pinion Shims, Crush Sleeve, Carrier Shims, Ring Gear Bolts, Gasket, Marking Compound, Brush & Lock-Tite * Bearing kit is for stock carriers. HD Bearings for Aftermarket Eaton/Auburn Posi Units Available in other listing

## Features

- GM 8.5" 10-Bolt Ring & Pinion & Master Bearing/Installaton Kit
- Premium Quality Gear - 3.42 Ratio
- Master Bearing/Installation Kit Includes: Carrier Bearings/Races, Pinion Bearings/Races, Pinion Seal, Pinion Nut, Pinion Shims, Crush Sleeve, Carrier Shims, Ring Gear Bolts, Gasket, Marking Compound, Brush & Lock-Tite
- This bearing kit is for stock carriers. Aftermarket Eaton/Auburn Posi Units Require HD Bearings

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B077S7PQGD |
| Bearing Number | GM 8 5 |
| Bearing Type | Pinion Bearing |
| Best Sellers Rank | #753,111 in Automotive ( See Top 100 in Automotive ) #392 in Automotive Replacement Differential Assembly Kits |
| Brand Name | QP |
| Compatible Lubricant | Grease |
| Customer Reviews | 4.3 4.3 out of 5 stars (48) |
| Manufacturer | QP |
| Material Type | Alloy Steel |
| Number of Items | 1 |
| Number of Packs | 1 |
| Part Number | GM85342, ZK GM8.5 |
| UPC | 650181398443 |
| Unit Count | 1 Count |
| Warranty Description | 1 Year Warranty on All Parts |

## Product Details

- **Bearing Number:** GM 8 5
- **Bearing Type:** Pinion Bearing
- **Brand:** QP
- **Compatible Lubricant:** Grease
- **Material:** Alloy Steel

## Images

![CHEVY GM 8.5" 10-Bolt Ring and Pinion 3.42 Ratio Gears & Master Bearing/Install Kit - Image 1](https://m.media-amazon.com/images/I/51vknZmNwcL.jpg)

## Questions & Answers

**Q: This kit does not match up with the my 02 chevy trailblazer.  the pinon is too long and bigger than my original that came with truck. help me plz**
A: I bought the set for a 86 10 bolt with 8.5 ring gear fit perfect no problems 02 must be different

**Q: Does ring and pinion gear come with this kit**
A: Yes, the ring & pinion gear come with this kit.

Let me know if you have any other questions.

Thanks,
BRYDON
641-751-8060
staticz2229@gmail.com

**Q: Will this fit rear 1994 gmc k1500 4x4**
A: as long if it is a 3:42 ratio it will fit look in the glove box to see it

**Q: Will this work for a 98 chevy cheyenne?**
A: Yes, this kit will work GREAT in a 1998 Chevy Cheyenne.

Let me know if you have any other questions.

Thanks,
BRYDON
641-751-8060
staticz2229@gmail.com

## Frequently Bought Together

- CHEVY GM 8.5" 10-Bolt Ring and Pinion 3.42 Ratio Gears & Master Bearing/Install Kit
- USA Standard Gear (ZBKGM8.5) Bearing Kit for GM 8.5 Rear Differential
- Friction Modifier Positraction Additive for Limited Slip Differentials

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-09-20*