{"product_id":"injora-cnc-aluminum-transmission-upgrade-for-1-18-rc-crawler-trx4m-370-2204-motors","title":"INJORA CNC Aluminum Transmission Upgrade for 1\/18 RC Crawler TRX4M – 370\/2204 Motors","description":"\u003ch2\u003eUpgrade your INJORA 1\/18 RC crawler with a precision CNC aluminum transmission\u003c\/h2\u003e\n\u003cp\u003eDesigned for reliability on tight trails and steep climbs, the INJORA CNC Aluminum Transmission offers a sturdy chassis that you can feel in action. The thicker, CNC-machined housing provides a robust foundation, while the sleek black finish adds a bold touch to your crawler’s undercarriage. Built to accommodate a taller profile, it makes room for 370 motors without sacrificing clearance, so you can push your rig into more demanding configurations with confidence.\u003c\/p\u003e\n\u003cp\u003eThis transmission is more than a metal shell—it’s a thoughtfully engineered upgrade that aims to deliver consistent gear engagement and smoother power transfer. In real-world use, you might notice steadier low-end torque delivery during crawling sequences and a more controlled ascent on irregular terrain. While outcomes can vary with setup, many drivers appreciate the way the gears maintain alignment under load, helping you preserve speed through technical sections and maintain momentum on rocky passages.\u003c\/p\u003e\n\u003ch3\u003eSmart upgrade choices for your crawler\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eEnhanced durability: CNC aluminum construction stands up to rough trails and repeated shifting.\u003c\/li\u003e\n  \u003cli\u003eImproved aesthetics: A black housing adds style while coordinating with other aluminum components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n  \u003cli\u003eFreedom to pair with larger motors: Taller housing fits 370 motors for expanded torque options.\u003c\/li\u003e\n  \u003cli\u003ePrecise gear meshing: The 24.4:1 metal gears with underdrive (32%) contribute to balanced power distribution.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eKey specs and compatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eNote: Suitable only for INJORA 370 motors and 2204 brushless motors. Not suitable for smaller motors such as 1721 and 180.\u003c\/li\u003e\n  \u003cli\u003eIncludes ball bearings for smoother operation and longevity.\u003c\/li\u003e\n  \u003cli\u003eUnderdrive gearing at 32% provides a different torque-to-speed feel compared to standard setups.\u003c\/li\u003e\n  \u003cli\u003eCompatible with TRX4M transmission gears, enabling easier upgrades within the ecosystem.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat you get\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCNC aluminum transmission housing\u003c\/li\u003e\n  \u003cli\u003e24.4:1 metal gears with underdrive 32%\u003c\/li\u003e\n  \u003cli\u003eBall bearings included\u003c\/li\u003e\n  \u003cli\u003eCompatibility with TRX4M gear sets for straightforward integration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf you’re planning a mid-season trail build or simply want a cleaner, more capable drivetrain, this INJORA transmission upgrade offers a practical path forward. It’s about consistency, ease of install, and giving your 1\/18 crawler a chance to tackle new terrain with added confidence.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this transmission compatible with all 1\/18 TRX4M crawlers?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: It’s designed for INJORA 370 motors and 2204 brushless motors; not compatible with smaller 1721 or 180 motors.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What benefits does the CNC aluminum housing offer?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Expect improved durability, better heat dissipation, and a clean, color-matched appearance for TRX4M upgrades.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"INJORA","offers":[{"title":"Default Title","offer_id":46525150658759,"sku":"B0CZDTJKVL","price":41.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0780\/2355\/7319\/files\/injora-cnc-aluminum-transmission-trx4m-assembly.jpg?v=1778361477","url":"https:\/\/toyterrax.com\/products\/injora-cnc-aluminum-transmission-upgrade-for-1-18-rc-crawler-trx4m-370-2204-motors","provider":"ToyTerrax","version":"1.0","type":"link"}