---
product_id: 335365684
title: "Yukon Gear Dura Grip Limited Slip Positraction Unit For gm 8.5\"/8.6\" Differential With 30 Spline AXLe, 2.73-And-Up Ratio, Ydggm8.5-3-30-1"
brand: "yukon gear & axle"
price: "A$1072"
currency: AUD
in_stock: true
reviews_count: 5
category: "Yukon Gear & Axle"
url: https://www.desertcart.com.au/products/335365684-yukon-gear-dura-grip-limited-slip-positraction-unit-for-gm
store_origin: AU
region: Australia
---

# 4-spring Clutch Style Positraction Forged 4320 Steel Internals Assembled in the USA Yukon Gear Dura Grip Limited Slip Positraction Unit For gm 8.5"/8.6" Differential With 30 Spline AXLe, 2.73-And-Up Ratio, Ydggm8.5-3-30-1

**Brand:** yukon gear & axle
**Price:** A$1072
**Availability:** ✅ In Stock

## Summary

> 🚙 Grip the road like a pro—never get left behind!

## Quick Answers

- **What is this?** Yukon Gear Dura Grip Limited Slip Positraction Unit For gm 8.5"/8.6" Differential With 30 Spline AXLe, 2.73-And-Up Ratio, Ydggm8.5-3-30-1 by yukon gear & axle
- **How much does it cost?** A$1072 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/335365684-yukon-gear-dura-grip-limited-slip-positraction-unit-for-gm)

## Best For

- yukon gear & axle enthusiasts

## Why This Product

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

## Key Features

- • **Unmatched Durability:** Forged 4320 steel internals engineered for long-lasting strength and reliability under extreme conditions.
- • **Seamless Compatibility:** Fits GM 8.5"/8.6" differentials with 30 spline axles and 2.73+ gear ratios, ensuring perfect integration with your build.
- • **Proudly Made in the USA:** Crafted and assembled domestically, guaranteeing top-tier quality and supporting American manufacturing excellence.
- • **Precision Traction Control:** 4-spring clutch design delivers aggressive, smooth power distribution to both wheels for superior grip on and off-road.
- • **Rebuildable for Lifelong Performance:** Fully rebuildable unit means you can maintain peak performance without costly replacements—invest once, dominate forever.

## Overview

The Yukon Gear Dura Grip Limited Slip Positraction Unit is a high-performance differential upgrade designed for GM 8.5" and 8.6" differentials with 30 spline axles and gear ratios of 2.73 and up. Featuring forged 4320 steel internals and a 4-spring clutch style mechanism, it delivers aggressive traction and smooth operation for both on- and off-road driving. Fully rebuildable and assembled in the USA, this unit ensures durability, compatibility, and long-term value for serious truck and SUV enthusiasts.

## Description

Dura Grip Positraction from Yukon Gear and Axle provides aggressive traction to both wheels while maintaining a smooth ride. For a variety of on and off road applications.Compatible with Differentials:• GM 8.5" Front - 28 Spline• GM 8.5" Front - 30 Spline• GM 8.5" Rear - 28 Spline• GM 8.5" Rear - 30 Spline• GM 8.6" Rear, '09 & up• GM 8.6" Rear, '99-'08

Review: Muy satisfecho, calidad, precio y todo en tiempo
Review: Used on a custom build called the creamsicle .. it’s a truck.. worked great!

## Features

- Forged 4320 Steel Internals
- Fully Rebuildable; 4-spring, clutch style positraction
- Clutch Style Positraction
- Assembled in the USA

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003O755NS |
| Customer Reviews | 4.7 4.7 out of 5 stars (845) |
| Date First Available | 8 January 2013 |
| Exterior | Machined |
| Grip size | GM 8.5'/8.6' - 30 Spline Axle |
| Item Weight | 10.1 Kilograms |
| Item model number | YDGGM8.5-3-30-1 |
| Manufacturer | Yukon Gear & Axle |
| Manufacturer Part Number | YDGGM8.5-3-30-1 |
| Model | Yukon Gear Dura Grip Limited Slip Positraction Unit for GM 8.5'/8.6' Differential with 30 Spline Axle, 2.73-And-Up Ratio, YDGGM8.5-3-30-2 |
| OEM Part Number | YDGGM9.5331 |
| Special Features | DIFFERENTIAL OIL: Use non-synthetic GL-5 gear oil and Yukon LSD (Limited Slip Differential) additive (ASIN B00J0G09JW, model OILADD) are recommended for durable performance and smooth operation. Synthetic oil is not recommended and can result in aggressive or noisy operation. This unit requires the use of carrier bearing & race part numbers LM102949 & LM102911 for the 8.5 in. housing (2.891 in. Ra… |

## Product Details

- **Brand:** Yukon Gear & Axle
- **Colour:** Purple
- **Global Trade Identification Number:** 00883584260165
- **Material:** Alloy Steel
- **UPC:** 883584260165

## Images

![Yukon Gear Dura Grip Limited Slip Positraction Unit For gm 8.5"/8.6" Differential With 30 Spline AXLe, 2.73-And-Up Ratio, Ydggm8.5-3-30-1 - Image 1](https://m.media-amazon.com/images/I/61vTkWDo-GL.jpg)

## Available Options

This product comes in different **Pattern, Style** options.

## Questions & Answers

**Q: Will this fit a 86 Chevy C10 with the 8.5 10 bolt rear?**
A: no you will need 30 spline axles those trucks used 28 spline axles

**Q: This fit a 94 chevy 1500?**
A: Yes, this unit will work GREAT in a 1994 Chevy 1500.

Let me know if you have any other questions.

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

**Q: Is this a drop in replacement?**
A: Almost a  drop in unit, you will have to move your ring gear from your  original  unit..and  press on new  bearings...

**Q: Will this fit a 1973 Pontiac Firebird?**
A: First answer is not correct. This is NOT for a 9.5” 14 bolt. The description states it is for a 10 bolt 8.5” or 8.6” with 30 spline axle shafts

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by E***Z on 17 September 2022*

Muy satisfecho, calidad, precio y todo en tiempo

### ⭐⭐⭐⭐⭐ Review
*by A***R on 15 October 2024*

Used on a custom build called the creamsicle .. it’s a truck.. worked great!

### ⭐⭐⭐⭐⭐ Review
*by C***S on 17 November 2025*

This is the second rear end we have had to replace in my 05 sierra with 400k miles, so far we have had no problems with it.. the company's customer service team was absolutely outstanding when i had trouble with my purchase of their $40 lifetime guarantee for this part. My card was saying I had been charged twice, but the gentleman made sure I wasn't and even shipped the card for the warranty next day for 100% free! then called me again to tell me he had the tech people check just to be sure. I cannot say enough good things about this company and the people working there! definitely would buy again if i didn't have the warranty for it!

## Frequently Bought Together

- 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
- Friction Modifier Positraction Additive for Limited Slip Differentials
- Yukon Gear & Axle (CK GM8.6) Carrier Installation Kit for GM 8.6 Differential

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-03-07*