--- 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: "¥20824" currency: JPY in_stock: false category: "Yukon Gear & Axle" url: https://www.desertcart.jp/products/335365684-yukon-gear-dura-grip-limited-slip-positraction-unit-for-gm store_origin: JP region: Japan --- # 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:** ¥20824 **Availability:** ❌ Out of Stock ## Summary > 🚗 Grip the road like a pro — never settle for less! ## 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?** ¥20824 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/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:** Built with premium forged 4320 steel for long-lasting strength and reliability. - • **Proudly American Made:** Assembled in the USA, ensuring top-tier quality and craftsmanship you can trust. - • **Seamless Compatibility:** Fits GM 8.5"/8.6" differentials with 30 spline axles and 2.73+ gear ratios for versatile upgrades. - • **Customizable Performance:** Adjust clutch aggressiveness to match your driving style and terrain demands. - • **Precision Traction Control:** 4-spring clutch design delivers aggressive yet smooth power distribution to both wheels. ## 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 while maintaining smooth ride quality. Fully rebuildable and assembled in the USA, this unit offers customizable clutch engagement for tailored driving experiences, making it a top choice for both on- and off-road 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 ## 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 | | Best Sellers Rank | #97,577 in Automotive ( See Top 100 in Automotive ) #26 in Car Differential Assembly Kits | | Brand Name | Yukon Gear & Axle | | Customer Reviews | 4.7 4.7 out of 5 stars (866) | | Global Trade Identification Number | 00883584260165 | | Included Components | 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 | | Item Type Name | 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 | | Item Weight | 0.01 Ounces | | Manufacturer | Yukon Gear & Axle | | Material Type | Alloy Steel | | Model | YDGGM8.5-3-30-1 | | Number of Items | 1 | | Part Number | YDGGM8.5-3-30-1 | | UPC | 883584260165 | | Unit Count | 1 Count | ## 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 ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/335365684-yukon-gear-dura-grip-limited-slip-positraction-unit-for-gm](https://www.desertcart.jp/products/335365684-yukon-gear-dura-grip-limited-slip-positraction-unit-for-gm) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-09-30*