---
product_id: 402292461
title: "(ZK GM8.5-HD) Master Overhaul Kit for GM 8.5\" Differential with HD Positraction/Locker"
brand: "usa standard gear"
price: "€ 515.82"
currency: EUR
in_stock: true
url: https://www.desertcart.sk/products/402292461-zk-gm8-5-hd-master-overhaul-kit-for-gm-8
store_origin: SK
region: Slovakia
---

# High Quality Koyo Bearings Complete Installation Kit 1 Year Warranty (ZK GM8.5-HD) Master Overhaul Kit for GM 8.5" Differential with HD Positraction/Locker

**Brand:** usa standard gear
**Price:** € 515.82
**Availability:** ✅ In Stock

## Summary

> 🔩 Gear Up for Greatness!

## Quick Answers

- **What is this?** (ZK GM8.5-HD) Master Overhaul Kit for GM 8.5" Differential with HD Positraction/Locker by usa standard gear
- **How much does it cost?** € 515.82 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/402292461-zk-gm8-5-hd-master-overhaul-kit-for-gm-8)

## 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

- • **Built to Last:** High-quality Koyo bearings ensure durability and performance.
- • **Peace of Mind:** Enjoy a full year of warranty coverage for worry-free driving.
- • **Elevate Your Ride:** Experience enhanced traction and control with HD Positraction/Locker.
- • **Unleash Your Drive:** Transform your GM 8.5" differential with precision-engineered components.
- • **All-in-One Solution:** Complete installation kit simplifies your upgrade process.

## Overview

The USA Standard Gear (ZK GM8.5-HD) Master Overhaul Kit is designed for GM 8.5" differentials, featuring high-quality Koyo bearings and a complete installation kit, all backed by a 1-year warranty for ultimate peace of mind.

## Description

(ZK GM8.5-HD) Master Overhaul Kit for GM 8.5" Differential with HD Positraction/Locker

## Features

- 1 Year Warranty
- Uses High Quality Koyo Bearings and Races
- Complete Installation Kit

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | USA Standard Gear |
| Brand | USA Standard Gear |
| Model | ZKGM8.5-HD Master Overhaul Kit for GM 8.5" Differential |
| Item Weight | 5.9 pounds |
| Product Dimensions | 12 x 12 x 3 inches |
| Country of Origin | Japan |
| Item model number | ZK GM8.5-HD |
| Exterior | Machined |
| Manufacturer Part Number | ZK GM8.5-HD |
| OEM Part Number | ZKGM8.5HD |
| Special Features | This kit uses Koyo bearings and races, Included are carrier bearings and races, pinion bearings and races, pinion seal, complete shim kit, ring gear bolts, pinion nut, crush sleeve (if applicable), oil baffles and slingers (if applicable), USA Standard Master Overhaul kits let you finish your install with confidence |

## Images

![(ZK GM8.5-HD) Master Overhaul Kit for GM 8.5" Differential with HD Positraction/Locker - Image 1](https://m.media-amazon.com/images/I/71KRsnx5rjL.jpg)

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**Shop now:** [https://www.desertcart.sk/products/402292461-zk-gm8-5-hd-master-overhaul-kit-for-gm-8](https://www.desertcart.sk/products/402292461-zk-gm8-5-hd-master-overhaul-kit-for-gm-8)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-01-23*