---
product_id: 51428858
title: "USA Standard Gear (ZG GM8.5-373) Ring & Pinion Gear Set for GM 8.5 Differential"
brand: "usa standard gear"
price: "€ 622.94"
currency: EUR
in_stock: true
url: https://www.desertcart.sk/products/51428858-usa-standard-gear-zg-gm8-5-373-ring-and-pinion
store_origin: SK
region: Slovakia
---

# 40.64 x 30.48 x 15.24 cm dimensions 12 ring gear bolts 8.03 kg weight USA Standard Gear (ZG GM8.5-373) Ring & Pinion Gear Set for GM 8.5 Differential

**Brand:** usa standard gear
**Price:** € 622.94
**Availability:** ✅ In Stock

## Summary

> 🔧 Gear Up for Greatness!

## Quick Answers

- **What is this?** USA Standard Gear (ZG GM8.5-373) Ring & Pinion Gear Set for GM 8.5 Differential by usa standard gear
- **How much does it cost?** € 622.94 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/51428858-usa-standard-gear-zg-gm8-5-373-ring-and-pinion)

## Best For

- usa standard gear enthusiasts

## Why This Product

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

## Key Features

- • **Robust Warranty:** Enjoy peace of mind with a one-year defect warranty.
- • **Durable Construction:** Machined exterior ensures longevity and resilience.
- • **Enhanced Performance:** Achieve a 3.73 axle ratio for superior torque and acceleration.
- • **Precision Engineering:** Crafted for optimal performance and reliability.
- • **Versatile Compatibility:** Fits a variety of GM 8.5 differentials seamlessly.

## Overview

The USA Standard Gear (ZG GM8.5-373) Ring & Pinion Gear Set is engineered for GM 8.5 differentials, offering a reliable 3.73 axle ratio. With a robust design featuring 12 ring gear bolts and a one-year warranty against defects, this gear set is the perfect upgrade for performance enthusiasts looking to enhance their vehicle's capabilities.

## Description

Ring and Pinion Gear Sets from USA Standard offer enhanced strength while maintaining affordability, making them ideal for your next repair, rebuild or regear project.

## Features

- USA Standard ring and pinion sets are the right choice to add confidence to your install
- USA Standard Gear offers a full line of ring and pinion sets for a variety of common and hard to find applications
- USA standard gear offers a standard one year against defects on their ring and pinion sets
- This product is used in a 3. 73 axle ratio
- 12 Ring Gear Bolts

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Yukon Gear |
| Brand | USA Standard Gear |
| Model | USA Standard Gear (ZG GM8.5-373) Ring & Pinion Gear Set for GM 8.5 Differential |
| Product Dimensions | 40.64 x 30.48 x 15.24 cm; 8.03 kg |
| Item model number | ZG GM8.5-373 |
| Exterior | Machined |
| Manufacturer part number | ZG GM8.5-373 |
| OEM Part Number | FDHDZG GM8.5-373 |
| Item Weight | 8.03 kg |

## Images

![USA Standard Gear (ZG GM8.5-373) Ring & Pinion Gear Set for GM 8.5 Differential - Image 1](https://m.media-amazon.com/images/I/71+covMvBxL.jpg)
![USA Standard Gear (ZG GM8.5-373) Ring & Pinion Gear Set for GM 8.5 Differential - Image 2](https://m.media-amazon.com/images/I/91h0nV3zQ+L.jpg)
![USA Standard Gear (ZG GM8.5-373) Ring & Pinion Gear Set for GM 8.5 Differential - Image 3](https://m.media-amazon.com/images/I/91W2ZMVN8ZL.jpg)
![USA Standard Gear (ZG GM8.5-373) Ring & Pinion Gear Set for GM 8.5 Differential - Image 4](https://m.media-amazon.com/images/I/71ci9ut3RXL.jpg)
![USA Standard Gear (ZG GM8.5-373) Ring & Pinion Gear Set for GM 8.5 Differential - Image 5](https://m.media-amazon.com/images/I/71vD7FfJtoL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: Do you have a set for a 273 ratio?**
A: Sorry...3.31 Ratio is smallest we can get

**Q: I just received my "4.11" gear set for my dana 35. but the new gears are actually 4.10 gears (?). will these work? is this what i was suppose to get?**
A: yes, 4.09, 4.10, and 4.11 are all considered interchangeable

**Q: This fit impala ss 1996 ?**
A: Yes, these gears will work GREAT in a 1996 Chevy Impala SS.Let me know if you have any other questions.Thanks,BRYDON641-751-8060staticz2229@gmail.com

**Q: is this for a 28 or 30 spline?**
A: will fit either style of carrier

## Frequently Bought Together

- USA Standard Gear (ZG GM8.5-373) Ring & Pinion Gear Set for GM 8.5 Differential
- USA Standard Gear (ZK GM8.6) Master Overhaul Kit for GM 8.6 Differential
- Yukon Gear & Axle Dura Grip Limited Slip Differential Positraction, 30 Spline, 2.73-Up, Compatible with 8.5"/8.6" GM Axle, YDGGM8.5-3-30-1

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**Shop now:** [https://www.desertcart.sk/products/51428858-usa-standard-gear-zg-gm8-5-373-ring-and-pinion](https://www.desertcart.sk/products/51428858-usa-standard-gear-zg-gm8-5-373-ring-and-pinion)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-02-24*