{"product_id":"spicer-chromoly-axle-stub-shaft-u-joint-jeep-jk-wrangler-rubicon-dana-44-2007-2016","title":"Spicer 4340 Chromoly Front Outer Axle Stub Shaft \u0026 Performance U-Joint Kit for 2007-2016 Jeep Wrangler JK Rubicon (Dana 44)","description":"\u003cp data-path-to-node=\"7\"\u003eEliminate weak points in your front driveline, prevent catastrophic trail failures, and confidently conquer harsh terrain with this genuine \u003cb data-path-to-node=\"7\" data-index-in-node=\"140\"\u003eSpicer Chromoly Front Outer Axle Stub Shaft \u0026amp; U-Joint Upgrade Kit\u003c\/b\u003e. Specifically engineered as a high-strength, premium performance hardware solution for \u003cb data-path-to-node=\"7\" data-index-in-node=\"293\"\u003e2007–2016 Jeep Wrangler JK Rubicon 4x4\u003c\/b\u003e models, this kit overhauls a single outer wheel station on vehicles equipped with factory Next-Gen Dana 44 front axles.\u003c\/p\u003e\n\u003cp data-path-to-node=\"8\"\u003eOn lifted Jeep JK Rubicon models, running oversized trail tires (35 inches or larger) combined with an engaged front locker places immense stress on the factory front axle shafts. The outer stub shaft passes through the steering knuckle into the wheel hub assembly, transferring maximum rotational power directly to the tire. Under extreme off-road rock crawling conditions, sudden traction spikes can cause weak factory carbon-steel shafts to shear at the splines or stretch the universal joint ears out-of-round. A snapped axle shaft instantly leaves you stranded without 4WD power and can cause massive secondary damage to your inner steering knuckles, brake lines, and unit bearings.\u003c\/p\u003e\n\u003cp data-path-to-node=\"9\"\u003eThis high-performance upgrade kit swaps out vulnerable factory steel for a premium \u003cb data-path-to-node=\"9\" data-index-in-node=\"83\"\u003e4340 Chromoly forged alloy outer stub shaft\u003c\/b\u003e, heat-treated and induction-hardened to deliver exceptional torsional strength and flexibility under extreme load angles. To match this metallurgical upgrade, the kit bundles a heavy-duty \u003cb data-path-to-node=\"9\" data-index-in-node=\"315\"\u003eSpicer Life Series (SPL) cold-forged universal joint\u003c\/b\u003e. This non-greaseable u-joint utilizes a solid cross design with advanced multi-lip synthetic rubber seals to completely lock out trail mud, water, and sand while maximizing internal needle bearing life. Sourcing a genuine Spicer performance bundle guarantees exact 32-spline outer hub fitment, optimal u-joint operating clearances, and matching snap rings to ensure bulletproof trail reliability.\u003c\/p\u003e\n\u003cp data-path-to-node=\"10\"\u003e\u003cb data-path-to-node=\"10\" data-index-in-node=\"0\"\u003eKit Contents (Services One Front Outer Steering Knuckle Wheel End):\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"11\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,0,0\"\u003e(1) High-Strength 4340 Forged Chromoly Front Outer Axle Stub Shaft (32 Spline Outer)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,1,0\"\u003e(1) Performance Spicer Life Series (SPL) Heavy-Duty Front Axle U-Joint\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"11,2,0\"\u003eComplete Set of Premium Outer Full-Circle and Half-Circle Retaining Snap Rings\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"12\"\u003e\u003cb data-path-to-node=\"12\" data-index-in-node=\"0\"\u003eKit Highlights:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"13\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,0,0\"\u003e\u003cb data-path-to-node=\"13,0,0\" data-index-in-node=\"0\"\u003eHeavy-Duty Chromoly Upgrade:\u003c\/b\u003e Forged from high-grade 4340 Chromoly alloy steel to provide significantly higher tensile strength and torque capacity compared to standard factory shafts.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,1,0\"\u003e\u003cb data-path-to-node=\"13,1,0\" data-index-in-node=\"0\"\u003ePremium SPL Series U-Joint:\u003c\/b\u003e Includes a maintenance-free, solid-cross universal joint engineered to handle high operational angles, reducing friction and resisting sudden impact breakage.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,2,0\"\u003e\u003cb data-path-to-node=\"13,2,0\" data-index-in-node=\"0\"\u003eBuilt for Big Tires \u0026amp; Lockers:\u003c\/b\u003e Tailored specifically to handle the extreme stress loads generated by deep gear ratios, large off-road tires, and fully locked front differentials on the trail.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"13,3,0\"\u003e\u003cb data-path-to-node=\"13,3,0\" data-index-in-node=\"0\"\u003eExact Original Blueprint Fit:\u003c\/b\u003e Designed by the vehicle's original axle manufacturer to slide perfectly into factory JK Rubicon steering knuckles and inner axle shaft assemblies without modifications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-path-to-node=\"14\"\u003e\u003cb data-path-to-node=\"14\" data-index-in-node=\"0\"\u003eVehicle \u0026amp; Axle Fitment:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul data-path-to-node=\"15\"\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"15,0,0\"\u003e\u003cb data-path-to-node=\"15,0,0\" data-index-in-node=\"0\"\u003eAxle Profile:\u003c\/b\u003e Next-Generation Solid Monobeam Front \u003cb data-path-to-node=\"15,0,0\" data-index-in-node=\"51\"\u003eDana 44 Axles\u003c\/b\u003e factory-equipped with electric locking differentials. \u003ci data-path-to-node=\"15,0,0\" data-index-in-node=\"119\"\u003eDoes not fit standard non-Rubicon Dana 30 front axles or aftermarket standard 30-spline configurations.\u003c\/i\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"15,1,0\"\u003e\u003cb data-path-to-node=\"15,1,0\" data-index-in-node=\"0\"\u003eJeep Wrangler JK Rubicon:\u003c\/b\u003e 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, and 2016 2-Door 4x4 models.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"15,2,0\"\u003e\u003cb data-path-to-node=\"15,2,0\" data-index-in-node=\"0\"\u003eJeep Wrangler Unlimited JK Rubicon:\u003c\/b\u003e 2007–2016 4-Door 4x4 models.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp data-path-to-node=\"15,3,0\"\u003e\u003cb data-path-to-node=\"15,3,0\" data-index-in-node=\"0\"\u003ePosition:\u003c\/b\u003e Front Outer Axle Shaft Wheel End — Left (Driver) or Right (Passenger) Side (Sold Individually)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spicer","offers":[{"title":"Default Title","offer_id":43562423517258,"sku":"PLAT-SPICER-KIT157","price":233.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0706\/5560\/6858\/files\/12_f81a605e-3fb6-4965-a9e6-1857bbf688dd.jpg?v=1777722607","url":"https:\/\/platinumperformanceparts.com\/products\/spicer-chromoly-axle-stub-shaft-u-joint-jeep-jk-wrangler-rubicon-dana-44-2007-2016","provider":"Platinum Performance Parts","version":"1.0","type":"link"}