--- product_id: 535338541 title: "Hardened Steel D-Shaped Hole Drive Shafts for TRX4M Defender Bronco" brand: "injora" price: "25815CFA" currency: XOF in_stock: true reviews_count: 13 category: "Injora" url: https://www.desertcart.sn/products/535338541-hardened-steel-d-shaped-hole-drive-shafts-for-trx4m-defender store_origin: SN region: Senegal --- # D-shaped & rounded rectangle holes for secure fit Precision scale joint & spline diameter Hardened stainless steel build Hardened Steel D-Shaped Hole Drive Shafts for TRX4M Defender Bronco **Brand:** injora **Price:** 25815CFA **Availability:** ✅ In Stock ## Summary > ⚙️ Upgrade your TRX4M Bronco with steel precision and unstoppable strength! ## Quick Answers - **What is this?** Hardened Steel D-Shaped Hole Drive Shafts for TRX4M Defender Bronco by injora - **How much does it cost?** 25815CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/535338541-hardened-steel-d-shaped-hole-drive-shafts-for-trx4m-defender) ## Best For - injora enthusiasts ## Why This Product - Trusted injora brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Performance Boost:** Heavier metal shafts lower the center of gravity, enhancing stability and control on rugged terrains. - • **Precision Fit Design:** D-shaped and rounded rectangle holes deliver a tighter, more reliable connection to transmission and axles. - • **Unmatched Durability:** Crafted from hardened stainless steel to resist rust and wear, ensuring long-lasting performance. - • **Trusted Brand Quality:** INJORA’s premium upgrade over stock plastic parts, backed by 4.7-star reviews and proven reliability. - • **Realistic Scale Accuracy:** Scale joint and spline diameters engineered for authentic TRX4M Defender Bronco compatibility. ## Overview The INJORA Hardened Steel D-Shaped Hole Drive Shafts are precision-engineered metal upgrades designed specifically for the 1/18 scale TRX4M Defender Bronco. Constructed from rust-resistant stainless steel with a unique D-shaped and rounded rectangle hole design, these shafts provide a tighter, more durable connection to transmission and axles. They improve vehicle stability by lowering the center of gravity and are compatible with stock and INJORA gears, making them a must-have for serious RC enthusiasts seeking enhanced performance and realism. ## Description Buy INJORA Hardened Steel D-Shaped Hole Drive Shafts for TRX4M Defender Bronco: Rotor Shafts - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Solid upgrade from Injora - This is a great upgrade for the stock TRX4M - plastic to metal conversion. It's a no brainer. They're metal so they're a ton stronger than the stock plastic ones. They look way cooler than the stock ones as well. And they're heavier so it helps keep the CoG low. They're also from Injora - one of the most reputable brands in the business. Easy enough to assemble and came with all necessary hardware - a couple of set screws. Make sure when you install them, you install them "in-phase". Google that and you'll see what I mean. Installing this way will help reduce torque twist. Review: Awesome driveshafts - Heavy duty, seem to work better than the stock plastic ones. Recommend using lock tight on the screw, one of mine fell out. They did come with spare screws. I have not had an issue with the pins falling out. ## Features - Stainless steel materials construction, not easy to rust - Enhanced structure design for long-life durability - Scale Joint and spline diameter size for realistic appearance - D-Shaped and rounded rectangle holes desgin offer tighter connection to transmission and axles - Perfect for TRX4M Bronco Defender stock gears and INJORA gears. However, due to different manufacturing processes, we can not guarantee drive shaft will or will not fit on other brand axle gears. - Note: Designed for 1/18 TRX4M Defender Bronco. Not Compatible with TRX4M High Trail K10 F150. - AGE RECOMMENDATION: Not for children under 14 years. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0C7GQ6MFL | | Best Sellers Rank | #26,250 in Toys & Games ( See Top 100 in Toys & Games ) #2 in RC Vehicle Rotor Shafts | | Brand Name | INJORA | | Customer Reviews | 4.7 out of 5 stars 578 Reviews | | Manufacturer | INJORA | | Material Type | Steel | | Model | 4M-50BK | | Part Number | 4M-50BK | | Unit Count | 6 Count | ## Images ![Hardened Steel D-Shaped Hole Drive Shafts for TRX4M Defender Bronco - Image 1](https://m.media-amazon.com/images/I/51kDc2TWtBL.jpg) ## Questions & Answers **Q: Are these version 2? Same as chrome ones.** A: Yes they the same, I have both sets so, I can confirm that they're the same **Q: Whould these fit fms fcx or furitek caymen? Thanks** A: They are for 1:18 scale crawlers, but they're only a few bucks, so try em out. You could probably cross reference sizes though to find out for sure. I know the hole to attach the shaft is a d-shaped hole. **Q: Any idea if these will work with the K10 High Trail?** A: I use them on my K10 Monster Truck build with 59mm INJORA shocks. It's at their limit, but functional. I think INJORA just came out with a stainless steel version, specifically for the K10, on their website. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Solid upgrade from Injora *by J***Y on March 6, 2026* This is a great upgrade for the stock TRX4M - plastic to metal conversion. It's a no brainer. They're metal so they're a ton stronger than the stock plastic ones. They look way cooler than the stock ones as well. And they're heavier so it helps keep the CoG low. They're also from Injora - one of the most reputable brands in the business. Easy enough to assemble and came with all necessary hardware - a couple of set screws. Make sure when you install them, you install them "in-phase". Google that and you'll see what I mean. Installing this way will help reduce torque twist. ### ⭐⭐⭐⭐⭐ Awesome driveshafts *by M***E on January 12, 2026* Heavy duty, seem to work better than the stock plastic ones. Recommend using lock tight on the screw, one of mine fell out. They did come with spare screws. I have not had an issue with the pins falling out. ### ⭐⭐⭐⭐⭐ Bronco 1/18 *by A***T on April 8, 2026* Perfect fit ## Frequently Bought Together - INJORA Drive Shaft Steel Black Front Rear Center Shaft with D Shaped Hole for TRX4M Defender Bronco 1/18 RC Crawler Upgrade, 22g/Set - INJORA High Clearance Chassis Links Set Brass Black Coating Link for 1/18 TRX4M Defender Bronco Upgrade Parts RC Crawler, 48g - INJORA Brass & Aluminium 59mm Shocks- Long Threaded Shock Absorber Oil Damper for TRX4M TRX4MT 1/18 RC Crawler Upgrade --- ## 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.sn/products/535338541-hardened-steel-d-shaped-hole-drive-shafts-for-trx4m-defender](https://www.desertcart.sn/products/535338541-hardened-steel-d-shaped-hole-drive-shafts-for-trx4m-defender) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-08-17*