--- product_id: 527029192 title: "1982-2013 700R4 4L60E 4L65E \"THE BEAST\" Heavy Duty Reaction Sun Gear Shell" price: "R3478" currency: ZAR in_stock: true url: https://www.desertcart.co.za/products/527029192-1982-2013-700r4-4l60e-4l65e-the-beast-heavy-duty-reaction store_origin: ZA region: South Africa --- # Heat-treated for heavy-duty strength Fits 1982-2013 GM 4-speed overdrive Thicker steel for max durability 1982-2013 700R4 4L60E 4L65E "THE BEAST" Heavy Duty Reaction Sun Gear Shell **Price:** R3478 **Availability:** ✅ In Stock ## Summary > ⚙️ Upgrade to THE BEAST: Where durability meets dominance in GM transmissions! ## Quick Answers - **What is this?** 1982-2013 700R4 4L60E 4L65E "THE BEAST" Heavy Duty Reaction Sun Gear Shell - **How much does it cost?** R3478 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/products/527029192-1982-2013-700r4-4l60e-4l65e-the-beast-heavy-duty-reaction) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Outlast:** Heavy-duty heat-treated steel resists wear and failure in high-stress transmission zones. - • **Dual-Style Ready:** Works flawlessly with both early washer-style and late Torrington-bearing assemblies. - • **Universal GM Fit:** Seamlessly compatible with 700R4, 4L60, 4L60E, 4L65E, 4L70E & 4L75E models from ’82 to ’13. - • **Complete Installation Kit:** Includes a durable nylon thrust washer for a smooth, reliable rebuild experience. - • **Performance-Grade Upgrade:** Thicker steel shell reinforces a notorious weak point for towing, performance, and rebuilds. ## Overview The Beast Heavy Duty Reaction Sun Gear Shell is a premium, heat-treated steel upgrade designed for GM 700R4 and 4L60-family automatic transmissions (1982-2013). Engineered to reinforce a common failure point, it fits multiple GM 4-speed overdrive models and supports both early and late transmission styles, making it the go-to choice for professional rebuilds, towing, and performance builds. ## Description HEAVY-DUTY GM REACTION SUN GEAR SHELL “The Beast” reaction sun gear shell is a heavy-duty replacement and upgrade for applicable GM 700R4 and 4L60-family automatic transmissions. Built for professional rebuilds, repair work, towing applications, and performance-oriented builds. BUILT TO HELP ADDRESS A COMMON FAILURE POINT The factory-style reaction shell can be a weak point in GM overdrive transmission builds. This upgraded shell features heavy-duty heat-treated construction and thicker steel to help provide improved strength and durability over standard factory-style shells. COMPATIBLE TRANSMISSION APPLICATIONS Compatible with 700R4, 4L60, TH700-R4, 4L60E, 4L65E, 4L70E, and 4L75E automatic transmission applications. EARLY AND LATE-STYLE COMPATIBILITY Designed for use with both washer-style and Torrington-bearing transmission assemblies. Includes a durable updated nylon thrust washer. PART NUMBER & INTERCHANGE Part Number: 42298B Interchange Numbers: A74624A, NTP-51810B IMPORTANT FITMENT NOTE Compatible with applicable GM 700R4 and 4L60-family transmissions from 1982 through 2013. Please verify transmission model, year, internal configuration, and part number before ordering. ## Features - HEAVY-DUTY SUN GEAR SHELL UPGRADE “The Beast” reaction sun gear shell is designed as a durable replacement and upgrade for GM 700R4 and 4L60-family automatic transmissions. Heavy-duty heat-treated construction helps support dependable performance during transmission rebuilds and upgrades. - THICKER-STEEL PERFORMANCE DESIGN Built from thicker steel than standard factory-style shells to help reinforce a common wear and failure area in applicable GM overdrive transmissions. Ideal for stock replacement, towing, performance, and heavy-duty rebuild applications. - COMPATIBLE WITH GM 4-SPEED OVERDRIVE TRANSMISSIONS Compatible with 700R4, 4L60, TH700-R4, 4L60E, 4L65E, 4L70E, and 4L75E automatic transmission applications. Fits applicable 1982-2013 transmission-family units. - WORKS WITH EARLY AND LATE-STYLE UNITS Designed for use in both earlier washer-style transmission assemblies and later Torrington-bearing style units. Includes an updated durable nylon thrust washer for installation. - PART NUMBER & INTERCHANGE INFORMATION Replaces or interchanges with part numbers 42298B, A74624A, and NTP-51810B. Please verify transmission model, year, and existing part number before ordering. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C31BJQK5 | | Best Sellers Rank | #50,865 in Automotive ( See Top 100 in Automotive ) #30 in Automotive Replacement Transmission Hard Parts | | Brand | WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC | | Customer Reviews | 4.7 4.7 out of 5 stars (123) | | Date First Available | April 19, 2023 | | Exterior | Steel | | Item Weight | 3.85 pounds | | Item model number | 42298B | | Manufacturer | WIT WHATEVER IT TAKES TRANSMISSION PARTS, INC | | Manufacturer Part Number | 42298B | | Model | The Beast | | Package Dimensions | 7.4 x 7.36 x 5.75 inches | ## Images ![1982-2013 700R4 4L60E 4L65E "THE BEAST" Heavy Duty Reaction Sun Gear Shell - Image 1](https://m.media-amazon.com/images/I/61d1aAVg0WL.jpg) ![1982-2013 700R4 4L60E 4L65E "THE BEAST" Heavy Duty Reaction Sun Gear Shell - Image 2](https://m.media-amazon.com/images/I/61L5P3mOV3L.jpg) ![1982-2013 700R4 4L60E 4L65E "THE BEAST" Heavy Duty Reaction Sun Gear Shell - Image 3](https://m.media-amazon.com/images/I/61fIgx6xtGL.jpg) ![1982-2013 700R4 4L60E 4L65E "THE BEAST" Heavy Duty Reaction Sun Gear Shell - Image 4](https://m.media-amazon.com/images/I/71fCulX+TDL.jpg) ## Frequently Bought Together - "THE BEAST" 700R4 4L60E 4L65E Transmission Heavy Duty Reaction Sun Gear Shell - Bonbo Turbine & Stator Shaft Teflon Seal Installer/Resizer Transmission Tool J-36418-C & ST-1503 for GM 700-R4, 4L60, 4L60-E, 4L65E, 4L70E and 4L70L - 4L60E Transmission Super Master Rebuild Kit w/Steels & Pistons 2004-UP --- ## 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.co.za/products/527029192-1982-2013-700r4-4l60e-4l65e-the-beast-heavy-duty-reaction](https://www.desertcart.co.za/products/527029192-1982-2013-700r4-4l60e-4l65e-the-beast-heavy-duty-reaction) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-10-08*