--- product_id: 403396381 title: "Performance Clutch Kit for Allison 1000 Transmissions - 600++ HP All GM/Duramax" brand: "defeo" price: "VT575297" currency: VUV in_stock: true url: https://www.desertcart.vu/products/403396381-performance-clutch-kit-for-allison-1000-transmissions-600-hp-all store_origin: VU region: Vanuatu --- # 600+ HP Complete Kit High Performance Performance Clutch Kit for Allison 1000 Transmissions - 600++ HP All GM/Duramax **Brand:** defeo **Price:** VT575297 **Availability:** ✅ In Stock ## Summary > 🚀 Shift into Overdrive with the Ultimate Clutch Kit! ## Quick Answers - **What is this?** Performance Clutch Kit for Allison 1000 Transmissions - 600++ HP All GM/Duramax by defeo - **How much does it cost?** VT575297 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/403396381-performance-clutch-kit-for-allison-1000-transmissions-600-hp-all) ## Best For - defeo enthusiasts ## Why This Product - Trusted defeo brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Versatile Fit:** Compatible with all model years of Allison 1000 Transmissions, making it the go-to choice for enthusiasts. - • **Unleash Your Power:** Designed for 600+ HP applications, this clutch kit takes your performance to the next level. - • **Ultimate Durability:** Features military-grade high energy plates for unmatched strength and longevity. - • **Comprehensive Upgrade:** Includes upgrades for C1 through C5, outpacing competitors who only offer C1-C4. - • **Precision Engineering:** Comes with a pre-machined C3 backplate for seamless installation and optimal performance. ## Overview The Performance Clutch Kit for Allison 1000 Transmissions is engineered for high-performance applications, supporting over 600 horsepower. It includes a complete set of Xcalliber EXXtreme C3/C4 clutches and military-grade high energy plates, ensuring durability and reliability. This kit is compatible with all model years and offers comprehensive upgrades for C1 through C5, making it the strongest option on the market. ## Description This kit includes our military grade, non-slotted high performance C3 & C4 clutch packs. The kit also includes C1 single sided Raybestos GPZ clutch replacement frictions and steels, perfect for your Allison 1000 Series automatic transmission overhaul. Xcalliber EXXtreme plates and GPZ friction plates greatly increase transmission performance and durability. Both of these state-of-the-art friction material far exceeds OE material to withstand high stress, high temperatures and repeated cycling. These plates have outstanding performance benefits and are perfect for heavy-duty vehicles and high-stress driving. Testing of these revolutionary friction material shows that it outperforms OE materials by as much as 40%. Plus, its performance improves as the power increases. Advantages: Even greater torque capacity with C3/C4 EXXtreme packs (7 Friction setup in both C3 & C4!) Late style C3/C4 Pistons and Return Springs C3/C4 non-slotted Frictions C3/C4 Kolene Steels Maintains piston travel Optimum performance Higher heat resistance Smooth engagements Enhanced shift feel Will work in: GMC, Chevy Silverado 1000, 2500HD, 3500HD with 6.6L Duramax Diesel This kit will work for all model years. Recommended for applications producing up to 600 – 2000 Horsepower (EXXtreme applications) Kit includes all of the following: Updated LML style C3/C4 molded pistons Updated LML style C3/C4 return spring assemblies GPZ – C1 Single Sided pack GPZ – C2 Pack Xcalliber EXXtreme – C3 Clutch Packs – Non-Slotted – 7 frictions per pack - Kolene Steels - Modified C3 Back Plate Xcalliber EXXtreme – C4 Clutch Packs – Non-Slotted – 7 frictions per pack - Kolene Steels High Energy – C5 Clutch Pack. Items for shipment to countries outside of the U.S. may be subject to taxes, customs duties and fees levied by the destination country ("Import Fees"). The recipient of the shipment is the importer of record in the destination country and is responsible for all Import Fees. ## Features - Part# CL1000-XX - Complete High Performance Clutch Pack with Xcalliber EXXtreme C3/C4 Clutches. The ultimate in performance clutch kits. Tow more and race harder with this C3/C4 setup and a pre-machined C3 backplate. C1, C2, C3 TorqKit, C4 (Raybestos GPZ Style) and C5 is high energy style. Fits all model years (Recommended for 600+ Horsepower applications). - This is truly the strongest and most complete high performance clutch pack on the market for your Allison 1000 Series Transmissions. This kit offers upgrades for C1 through C5, while competitors can only offer C1 through C4, with a standard C5 Pack. This kit offers high energy plates for C5 that were originally designed for military applications. ## Images ![Performance Clutch Kit for Allison 1000 Transmissions - 600++ HP All GM/Duramax - Image 1](https://m.media-amazon.com/images/I/81-H8nIuUKL.jpg) ![Performance Clutch Kit for Allison 1000 Transmissions - 600++ HP All GM/Duramax - Image 2](https://m.media-amazon.com/images/I/91inF6oAUFL.jpg) ![Performance Clutch Kit for Allison 1000 Transmissions - 600++ HP All GM/Duramax - Image 3](https://m.media-amazon.com/images/I/91r4NxB4LwL.jpg) --- ## 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.vu/products/403396381-performance-clutch-kit-for-allison-1000-transmissions-600-hp-all](https://www.desertcart.vu/products/403396381-performance-clutch-kit-for-allison-1000-transmissions-600-hp-all) --- *Product available on Desertcart Vanuatu* *Store origin: VU* *Last updated: 2026-05-06*