{"product_id":"crane-14-bolt-30-spline-4140-spindles","title":"Crane Axle GM 14-Bolt Billet Spindles - 30 Spline (for Crane Spindle System)","description":"\u003cp class=\"p1\"\u003eCrane Axle’s GM 14-Bolt 30-Spline Billet Spindles are engineered for builders who need a stronger and more consistent foundation than factory cast spindles can provide. Designed for custom fabricated axle housings, steering axle conversions, and high-abuse off-road applications, these spindles are precision machined in-house from solid 4140 billet steel to improve strength, bearing journal durability, and resistance to twisting under heavy load.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eUnlike factory 14-Bolt spindles that can suffer from inconsistent casting quality and deformation under extreme use, these billet spindles are built specifically for modern off-road applications running large tires, high horsepower, and aggressive suspension articulation. The design supports both standard smooth and metric ribbed 14-Bolt housings while also working with custom axle housings using up to a 3\" I.D. bore. They retain the use of OE wheel bearings and seals for easier serviceability on the trail or in the shop.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eIncludes:\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e(2) 4140 Billet 30 Spline Spindles\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e(2) Spindle Nut Spacers\u003c\/li\u003e\n\u003c\/ul\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 xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 14 14\" height=\"14\" width=\"14\"\u003e\n          \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M2.75 7H11.25\" class=\"vertical\"\u003e\u003c\/path\u003e\n          \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M7 2.75L7 11.25\" class=\"horizontal\"\u003e\u003c\/path\u003e\n        \u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003eFits GM 14-Bolt axle applications\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e30 spline spindle design\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eMachined from solid 4140 billet steel\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e3.00\" outer diameter\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eCompatible with 4\" x .500 wall tubing\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eWorks with standard smooth and metric ribbed housings\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eCompatible with custom housings up to 3\" I.D. bore\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eUses OE wheel bearings and wheel seals\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eIndividually machined for precision fitment\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eIncludes spindle nut spacers\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eMade in the USA\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 xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 14 14\" height=\"14\" width=\"14\"\u003e\n          \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M2.75 7H11.25\" class=\"vertical\"\u003e\u003c\/path\u003e\n          \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M7 2.75L7 11.25\" class=\"horizontal\"\u003e\u003c\/path\u003e\n        \u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eMake\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eYear Range\u003c\/th\u003e\n\u003cth\u003eAxle Application\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eGM\u003c\/td\u003e\n\u003ctd\u003eCustom Off-Road Applications\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e--\u003c\/td\u003e\n\u003ctd\u003eGM 14-Bolt Rear Axle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eChevrolet\u003c\/td\u003e\n\u003ctd\u003eCustom Fabricated Axle Builds\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e--\u003c\/td\u003e\n\u003ctd\u003eGM 14-Bolt Rear Axle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGMC\u003c\/td\u003e\n\u003ctd\u003eCustom Fabricated Axle Builds\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e--\u003c\/td\u003e\n\u003ctd\u003eGM 14-Bolt Rear Axle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp class=\"p1\"\u003e\u003cb\u003eFitment Notes:\u003c\/b\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003eFits standard smooth and metric ribbed GM 14-Bolt housings\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eCompatible with fabricated axle housings using up to a 3\" I.D. bore\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eDesigned for 30 spline spindle applications\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eWorks with OE-style wheel bearings and seals\u003c\/li\u003e\n\u003cli class=\"li1\"\u003eCompatible with \u003ca href=\"\/products\/14-bolt-30-spline-aluminum-wheel-hubs-set-of-2\"\u003eCrane Axle 30 Spline Aluminum Wheel Hubs (CA01050\u003c\/a\u003e)\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\u003cmeta charset=\"utf-8\"\u003e \u003cb id=\"docs-internal-guid-785e0e5c-7fff-2ba3-1543-a8eda468b24e\"\u003e\u003cspan\u003eTech Insight\u003c\/span\u003e\u003c\/b\u003e \u003cspan class=\"svg-wrapper icon-plus\"\u003e\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" fill=\"none\" viewbox=\"0 0 14 14\" height=\"14\" width=\"14\"\u003e\n          \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M2.75 7H11.25\" class=\"vertical\"\u003e\u003c\/path\u003e\n          \u003cpath stroke-linecap=\"round\" stroke-width=\"var(--icon-stroke-width)\" stroke=\"currentColor\" d=\"M7 2.75L7 11.25\" class=\"horizontal\"\u003e\u003c\/path\u003e\n        \u003c\/svg\u003e\u003c\/span\u003e\u003c\/summary\u003e\n\u003cdiv class=\"details-content rte\"\u003e\n\u003cp class=\"p1\"\u003eFactory GM 14-Bolt spindles were never designed around the shock loads created by modern rock bouncing, competition crawling, and high-horsepower off-road builds. Large tires, aggressive suspension setups, and heavy throttle input place extreme leverage on the spindle and bearing journals, often exposing the limitations of factory cast components.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eBy machining these spindles from solid 4140 billet steel, Crane Axle maintains a more consistent grain structure throughout the part compared to traditional castings. This improves resistance to spindle flex, journal wear, and long-term fatigue under repeated high-load conditions. Retaining OE wheel bearings and seals also simplifies serviceability when replacement parts are needed away from the shop.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/details\u003e\n\u003chr\u003e","brand":"Crane Axle","offers":[{"title":"Default Title","offer_id":56095457476774,"sku":"CA01050S","price":349.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/8394\/6406\/files\/CA01050S-Crane-14-Bolt-30-Spline-Spindles-1.jpg?v=1777493844","url":"https:\/\/wideopendesign.com\/products\/crane-14-bolt-30-spline-4140-spindles","provider":"Wide Open Design","version":"1.0","type":"link"}