--- product_id: 78685223 title: "CHEVY GM 8.5\" 10-Bolt Ring and Pinion 4.10/4.11 Ratio Gears & Master Bearing/Install Kit" brand: "qp" price: "€ 429.43" currency: EUR in_stock: true reviews_count: 5 category: "Qp" url: https://www.desertcart.it/products/78685223-chevy-gm-8-5-10-bolt-ring-and-pinion-4 store_origin: IT region: Italy --- # 4.10/4.11 gear ratio for optimized performance Complete master bearing & install kit 8620 heat-treated alloy steel CHEVY GM 8.5" 10-Bolt Ring and Pinion 4.10/4.11 Ratio Gears & Master Bearing/Install Kit **Brand:** qp **Price:** € 429.43 **Availability:** ✅ In Stock ## Summary > ⚙️ Upgrade your ride’s backbone with precision power and pro-level reliability! ## Quick Answers - **What is this?** CHEVY GM 8.5" 10-Bolt Ring and Pinion 4.10/4.11 Ratio Gears & Master Bearing/Install Kit by qp - **How much does it cost?** € 429.43 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/78685223-chevy-gm-8-5-10-bolt-ring-and-pinion-4) ## Best For - qp enthusiasts ## Why This Product - Trusted qp brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **OEM Compatibility:** Designed specifically for stock GM 8.5" 10-bolt carriers ensuring seamless fit and function - • **Optimized Gear Ratios:** 4.10/4.11 ratios engineered to boost torque and acceleration for that extra edge - • **Pro-Grade Reliability:** Trusted by mechanics and enthusiasts alike with a solid 4.2-star rating and top-tier specs - • **Precision Heat-Treated Alloy:** Crafted from durable 8620 steel for unmatched strength and longevity - • **All-Inclusive Installation Kit:** Everything you need—bearings, seals, bolts, and even Lock-Tite—delivered in one package ## Overview The CHEVY GM 8.5" 10-Bolt Ring and Pinion Gear Set features premium 8620 heat-treated alloy steel gears with a 4.10/4.11 ratio, paired with a comprehensive master bearing and installation kit. Designed for stock GM carriers, this kit includes all necessary components for a professional-grade installation, delivering enhanced torque and durability trusted by automotive pros. ## Description * BRAND NEW GM 8.5" 10-Bolt Ring & Pinion & Master Bearing/Installaton Kit * Premium Quality Gear - Ratio: 4.10/4.11 * Manufactured with 8620 Heat-Treated Material * Master Bearing/Installation Kit Includes: Carrier Bearings/Races, Pinion Bearings/Races, Pinion Seal, Pinion Nut, Pinion Shims, Crush Sleeve, Carrier Shims, Ring Gear Bolts, Gasket, Marking Compound, Brush & Lock-Tite * Bearing kit is for stock carriers. HD Bearings for Aftermarket Eaton/Auburn Posi Units Available in other listing Review: 4:11 Gear kit - The 4:11 fits great only issue I had was the bearings was a little too small for the posi unit which was a summit racing brand Review: Look great - Just having them installed ## Features - GM 8.5" 10-Bolt Ring & Pinion & Master Bearing/Installaton Kit - Premium Quality Gear -4.10/4.11 Ratio - Master Bearing/Installation Kit Includes: Carrier Bearings/Races, Pinion Bearings/Races, Pinion Seal, Pinion Nut, Pinion Shims, Crush Sleeve, Carrier Shims, Ring Gear Bolts, Gasket, Marking Compound, Brush & Lock-Tite - This bearing kit is for stock carriers. Aftermarket Eaton/Auburn Posi Units Require HD Bearings ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B077RL1QYC | | Bearing Type | Roller Bearing | | Best Sellers Rank | #425,256 in Automotive ( See Top 100 in Automotive ) #2 in Automotive Replacement Pinion Bearings #27 in Automotive Replacement Automatic Transaxle Bearings #8,633 in Automotive Replacement Drive Train Parts | | Brand | QP | | Brand Name | QP | | Compatible Lubricant | Grease | | Customer Reviews | 4.3 out of 5 stars 47 Reviews | | Manufacturer | QP | | Material | Alloy Steel | | Material Type | Alloy Steel | | Part Number | QP GM8.5-410-MBK | | Specification Met | Oem | | UPC | 650181398597 | ## Product Details - **Bearing Type:** Roller Bearing - **Brand:** QP - **Compatible Lubricant:** Grease - **Material:** Alloy Steel - **Specification Met:** Oem ## Images ![CHEVY GM 8.5" 10-Bolt Ring and Pinion 4.10/4.11 Ratio Gears & Master Bearing/Install Kit - Image 1](https://m.media-amazon.com/images/I/51vknZmNwcL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ 4:11 Gear kit *by T***X on October 10, 2022* The 4:11 fits great only issue I had was the bearings was a little too small for the posi unit which was a summit racing brand ### ⭐⭐⭐⭐⭐ Look great *by A***R on July 25, 2022* Just having them installed ### ⭐⭐⭐⭐ Make sure it is the 8.5!!!!! *by V***S on June 30, 2021* It came great and all, packaging was great, the quality seems good. Make sure you verify whether it is a 8.5 or 8.6!!!! Shims matter!!!! I made the mistake of ordering a 8.5 and now I have to fork over 30$ for new shims. Also consider buying more lock-tite if you undo the Ring and Carrier more than once. So far the rebuild process is okay, nothing against the company, we’ll see how it performs this month though! --- ## 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.it/products/78685223-chevy-gm-8-5-10-bolt-ring-and-pinion-4](https://www.desertcart.it/products/78685223-chevy-gm-8-5-10-bolt-ring-and-pinion-4) --- *Product available on Desertcart Italy* *Store origin: IT* *Last updated: 2026-05-05*