{"title":"Crane Axle Magnum Knuckles","description":"","products":[{"product_id":"crane-axle-magnum-knuckle-kit","title":"Crane Axle Magnum Knuckle Kit","description":"\u003ch5\u003eCrane Magnum Knuckles – The Strongest \u0026amp; Lightest Big Knuckle for Rock Crawlers, Rock Bouncers, Ultra4 \u0026amp; Hardcore Trail Rigs\u003c\/h5\u003e\n\u003cp\u003eEngineered to be the cornerstone of elite axle builds, these knuckles have been tested globally in Ultra4 racing, professional rock bouncing, and hardcore rock crawling, with unmatched success and durability.\u003c\/p\u003e\n\u003cp\u003eDesigned for maximum strength, steering performance, and serviceability, the Magnum Knuckle fits the RCV Big Bell axle stub \u003cem\u003ewithout\u003c\/em\u003e \u003cem\u003eremoving the boot\u003c\/em\u003e, making maintenance faster and easier than any competing knuckle system. With dual tapered roller bearings, a fully greaseable design, and serviceable bearings available at local parts stores, this knuckle is built for long term reliability on the trail and in competition.\u003cimg\u003e\u003c\/p\u003e\n\u003cp\u003eWhether you're building a high horsepower rock bouncer, an Ultra4 endurance racer, or a bulletproof trail rig, the Crane Magnum Knuckle is the elite choice that top builders trust.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e(2) Magnum Knuckles \u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e(2) Inner C's\u003c\/li\u003e\n\u003cli\u003e(2) High Steer Arms\u003c\/li\u003e\n\u003cli\u003e(2) Upper Tapered Roller Bearings\u003c\/li\u003e\n\u003cli\u003e(2) Lower Tapered Roller Bearings\u003c\/li\u003e\n\u003cli\u003e(2) Upper\/Lower Bearing Pins\u003c\/li\u003e\n\u003cli\u003e(2) Kingpin Caps\u003c\/li\u003e\n\u003cli\u003eHardware Kit\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eMade in USA\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003cspan class=\"svg-wrapper icon-plus\"\u003e\u003csvg width=\"14\" height=\"14\" viewbox=\"0 0 14 14\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\n          \u003cpath class=\"vertical\" d=\"M2.75 7H11.25\" stroke=\"currentColor\" stroke-width=\"var(--icon-stroke-width)\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\n          \u003cpath class=\"horizontal\" d=\"M7 2.75L7 11.25\" stroke=\"currentColor\" stroke-width=\"var(--icon-stroke-width)\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\n        \u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003cul\u003e\n\u003cli\u003eStrongest \u0026amp; Lightest big knuckle in the off-road industry\u003c\/li\u003e\n\u003cli\u003eProven in Ultra4, professional rock bouncing, rock crawling, and global trail riding\u003c\/li\u003e\n\u003cli\u003eAccepts RCV Big Bell axle shafts without removing the boot\u003c\/li\u003e\n\u003cli\u003eTop \u0026amp; bottom tapered roller bearings allow perfect preload setting\u003c\/li\u003e\n\u003cli\u003eFully greasable bearings for extended maintenance intervals\u003c\/li\u003e\n\u003cli\u003eBearings can be purchased at any local parts store\u003c\/li\u003e\n\u003cli\u003eC's available 3.5\"–4.0\" bored\u003c\/li\u003e\n\u003cli\u003e2.5-Ton Rockwell spindle bolt pattern\u003c\/li\u003e\n\u003cli\u003eCompatible with:\n\u003cul\u003e\n\u003cli\u003e2.5-Ton Rockwell spindles \u0026amp; hubs\u003c\/li\u003e\n\u003cli\u003eCrane Axle Unit Bearing Adapters\u003c\/li\u003e\n\u003cli\u003e05+ Ford Super Duty unit bearings\u003c\/li\u003e\n\u003cli\u003eRCV 40 spline inner shafts\u003c\/li\u003e\n\u003cli\u003eRCV Big Bell stub shaft\u003c\/li\u003e\n\u003cli\u003eForged 1550 U-joint shafts\u003c\/li\u003e\n\u003cli\u003e2.0\" inner axle shafts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eWorks with all Crane Axle brake kits for both Rockwell and 05+ Ford hub configurations\u003c\/li\u003e\n\u003cli\u003eCapable of 46° of steering (with preferred Crane + RCV setup)\u003c\/li\u003e\n\u003cli\u003eDesigned as a fully modular axle-building platform\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary\u003e\u003cstrong\u003eFitment \u003c\/strong\u003e\u003cspan class=\"svg-wrapper icon-plus\"\u003e\u003csvg width=\"14\" height=\"14\" viewbox=\"0 0 14 14\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\n          \u003cpath class=\"vertical\" d=\"M2.75 7H11.25\" stroke=\"currentColor\" stroke-width=\"var(--icon-stroke-width)\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\n          \u003cpath class=\"horizontal\" d=\"M7 2.75L7 11.25\" stroke=\"currentColor\" stroke-width=\"var(--icon-stroke-width)\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\n        \u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003cp\u003e\u003cstrong\u003eThe Crane Magnum Knuckle system is designed for custom-built front axles used in:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRock Crawlers\u003c\/li\u003e\n\u003cli\u003eRock Bouncers\u003c\/li\u003e\n\u003cli\u003eUltra4 Race Cars\u003c\/li\u003e\n\u003cli\u003eTrail Rigs\u003c\/li\u003e\n\u003cli\u003eFabricated Off-Road Axles\u003c\/li\u003e\n\u003cli\u003eHigh-Horsepower, Large-Tire Rigs (40–47\")\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCompatible with:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRockwell 2.5-Ton spindle setups\u003c\/li\u003e\n\u003cli\u003e05+ Ford Super Duty unit bearing conversions (when using Crane adapters)\u003c\/li\u003e\n\u003cli\u003eCustom-built 14-bolt, 60, 80, and fabricated housings with 3.5–4\" bores\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e\n\u003cdetails class=\"details\"\u003e\n\u003csummary\u003e\u003cstrong\u003eTech Insight\u003c\/strong\u003e \u003cspan class=\"svg-wrapper icon-plus\"\u003e\u003csvg width=\"14\" height=\"14\" viewbox=\"0 0 14 14\" fill=\"none\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\n          \u003cpath class=\"vertical\" d=\"M2.75 7H11.25\" stroke=\"currentColor\" stroke-width=\"var(--icon-stroke-width)\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\n          \u003cpath class=\"horizontal\" d=\"M7 2.75L7 11.25\" stroke=\"currentColor\" stroke-width=\"var(--icon-stroke-width)\" stroke-linecap=\"round\"\u003e\u003c\/path\u003e\n        \u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003cp\u003eThe Magnum Knuckle is the product of years of real-world racing abuse, engineering refinement, and testing across every terrain imaginable. By eliminating weaknesses found in factory and aftermarket knuckles, Crane engineered a steering platform that can handle extreme articulation, high horsepower, hydro assist, and massive tire loads without failure.\u003c\/p\u003e\n\u003cp\u003eThe RCV Big Bell compatibility sets this system apart—no boot removal, no stretching components, no hassle during trail repairs. Combined with dual tapered roller bearings, easily adjustable kingpin preload, and fully greaseable components, this knuckle delivers unmatched strength and service life.\u003c\/p\u003e\n\u003cp\u003eWide Open Design’s preferred race setup uses Crane Unit Bearing Adapters, 05+ Ford unit bearings, RCV 40 spline inners, and the RCV Big Bell stub. This combination produces up to 46 degrees of steering, incredible lateral strength, and the best serviceability in the industry—a true game-changer for Ultra4, rock bouncing, and extreme off-road builds.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e","brand":"Crane Axle","offers":[{"title":"Default Title","offer_id":56095456821414,"sku":"CA01038","price":2499.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/8394\/6406\/files\/CA01038-Crane-Magnum-Knuckle-1_4136a880-3ffd-4fb2-a898-be603bdb3d9a.jpg?v=1778093738"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/8394\/6406\/collections\/CA01038-Crane-Magnum-Knuckle-1_4136a880-3ffd-4fb2-a898-be603bdb3d9a.jpg?v=1777326597","url":"https:\/\/wideopendesign.com\/collections\/crane-magnum-knuckles.oembed","provider":"Wide Open Design","version":"1.0","type":"link"}