--- product_id: 402292461 title: "USA Standard Gear (ZK GM8.5-HD) Master Overhaul Kit for GM 8.5\" Differential with HD Positraction/Locker" brand: "usa standard gear" price: "2235.57 DT" currency: TND in_stock: true reviews_count: 5 url: https://www.desertcart.tn/products/402292461-usa-standard-gear-zk-gm8-5-hd-master-overhaul-kit store_origin: TN region: Tunisia --- # Complete shim kit & hardware for precision fit Koyo bearings & races for ultimate durability Proudly USA-made, engineered beyond OEM specs USA Standard Gear (ZK GM8.5-HD) Master Overhaul Kit for GM 8.5" Differential with HD Positraction/Locker **Brand:** usa standard gear **Price:** 2235.57 DT **Availability:** ✅ In Stock ## Summary > ⚙️ Upgrade your GM 8.5" differential with the overhaul kit that pros trust—don’t get left behind! ## Quick Answers - **What is this?** USA Standard Gear (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?** 2235.57 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/402292461-usa-standard-gear-zk-gm8-5-hd-master-overhaul-kit) ## 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 - • **Made in the USA:** Support domestic craftsmanship with a kit built for durability and precision. - • **OEM-Beating Quality:** Manufactured to exceed OEM standards, eliminating common failure points for peace of mind. - • **All-Inclusive Master Kit:** Includes carrier & pinion bearings, races, seal, shim kit, ring gear bolts, pinion nut, crush sleeve, oil baffles & slingers—everything you need in one box. - • **Plug-and-Play Installation:** No assembly required—get your GM 8.5" differential back on the road faster and with confidence. - • **Precision Engineered Reliability:** Koyo bearings and races ensure long-lasting, smooth differential performance. ## Overview The USA Standard Gear ZK GM8.5-HD Master Overhaul Kit is a comprehensive, USA-made solution designed to restore and enhance GM 8.5" differentials. Featuring premium Koyo bearings and races, a full shim kit, and all necessary hardware, this kit surpasses OEM standards to ensure durability, precision, and reliable performance for professional-grade vehicle maintenance. ## Description USA Standard Master Overhaul kits let you finish your install with confidence. ## Features - 1 Year Warranty - Uses High Quality Koyo Bearings and Races - Complete Installation Kit ## Technical Specifications | Specification | Value | |---------------|-------| | Asin | B00GWLLOHO | | Bearing Type | Ball Bearing | | Brand Name | USA Standard Gear | | Compatible Lubricant | Grease | | Customer Reviews | 4.2 4.2 out of 5 stars (171) 4.2 out of 5 stars | | Global Trade Identification Number | 00883584370574 | | Included Components | ZKGM8.5-HD Master Overhaul Kit for GM 8.5" Differential | | Item Dimensions | 30.5 x 30.5 x 7.6 Centimeters | | Item Type Name | ZKGM8.5-HD Master Overhaul Kit for GM 8.5" Differential | | Item Weight | 2.68 kg | | Manufacturer | USA Standard Gear | | Material Type | Alloy Steel, Bronze | | Model Number | ZK GM8.5-HD | | Number Of Items | 1 | | Number Of Packs | 1 | | Outside Diameter | 21.5 Centimetres | | Part Number | ZK GM8.5-HD | | Specification Met | ISO 9001 | | Unit Count | 1 Count | | Upc | 883584370574 | ## Product Details - **Bearing Type:** Ball Bearing - **Brand:** USA Standard Gear - **Compatible Lubricant:** Gear Oil, Grease - **Item Weight:** 5.9 pounds - **Item dimensions L x W x H:** 12 x 12 x 3 inches ## Images ![USA Standard Gear (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) ![USA Standard Gear (ZK GM8.5-HD) Master Overhaul Kit for GM 8.5" Differential with HD Positraction/Locker - Image 2](https://m.media-amazon.com/images/I/81DWSSdB9rL.jpg) ![USA Standard Gear (ZK GM8.5-HD) Master Overhaul Kit for GM 8.5" Differential with HD Positraction/Locker - Image 3](https://m.media-amazon.com/images/I/81WG88Kxl0L.jpg) ![USA Standard Gear (ZK GM8.5-HD) Master Overhaul Kit for GM 8.5" Differential with HD Positraction/Locker - Image 4](https://m.media-amazon.com/images/I/81jsFZ4Sj4L.jpg) ![USA Standard Gear (ZK GM8.5-HD) Master Overhaul Kit for GM 8.5" Differential with HD Positraction/Locker - Image 5](https://m.media-amazon.com/images/I/61ps-F9Y+JL.jpg) ## Available Options This product comes in different **Style Name** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Yukon HD bearing master kit *by on Reviewed in Canada 15 September 2020* Super fast shipping A++++ ### ⭐⭐⭐⭐⭐ USA Standard Gear set - Not YUKON - But still good! *by on Reviewed in the United States 13 June 2019* Got this for excellent sale price and then when box came said USA Standard Gear and not Yukon, I then called Yukon and where customer support informed me the item is incorrectly listed as a Yukon set in error. Amazon again is listing incorrectly, but the set is still similar to Yukon with the only differences between sets is Yukon has extra crush sleeve x2, and Timkon bearings, where the USA Gear set has Koyo bearings. That in a nutshell is this kit which is still excellent and made for Yukon Dura-grip carriers or Eaton Posi units, (per Yukon customer service), but always verify your aftermarket carrier before hand will accept these bearings or things will not fit correctly. ### ⭐⭐⭐⭐⭐ Happy *by on Reviewed in Canada 4 December 2019* Good for price --- ## 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.tn/products/402292461-usa-standard-gear-zk-gm8-5-hd-master-overhaul-kit](https://www.desertcart.tn/products/402292461-usa-standard-gear-zk-gm8-5-hd-master-overhaul-kit) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-09-02*