{"product_id":"1-1-4-48-spline-hollow-sway-bar-37-1-2-long","title":"1-1\/4\" 48-Spline Hollow Sway Bar – 37-1\/2\" Long","description":"\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003e1-1\/4\" 48-Spline Hollow Sway Bar – 37-1\/2\" Long – #179-3750\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBuild a properly matched sway bar system around this 1-1\/4-inch hollow splined bar. Featuring \u003cstrong\u003e.188-inch wall\u003c\/strong\u003e construction, \u003cstrong\u003e48-spline ends\u003c\/strong\u003e, and \u003cstrong\u003e1 inch of spline lengt\u003c\/strong\u003eh per side, it is designed for custom suspension applications where bar length, arm position, and packaging must work together.\u003c\/p\u003e\n\u003cp\u003eWhen paired with compatible sway bar arms and end links, the bar transfers load between the left and right suspension to help control body roll and improve chassis stability.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e4130 Alloy Steel:\u003c\/strong\u003e Manufactured from high-strength 4130 steel for the durability and torsional performance required in demanding suspension applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHollow .188-Inch Wall Construction:\u003c\/strong\u003e Reduces weight compared with a solid bar of the same outside diameter while providing dependable torsional resistance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eBlack Zinc-Plated Finish:\u003c\/strong\u003e Helps protect the steel against corrosion while providing a clean, uniform black appearance.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e48-Spline Ends:\u003c\/strong\u003e Provides positive arm engagement and multiple indexing positions for setting the sway bar arms at the proper operating angle.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e1-Inch Spline Length:\u003c\/strong\u003e Each end provides 1 inch of engagement for compatible sway bar arms.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eUniversal Configuration:\u003c\/strong\u003e Suitable for custom chassis, trucks, hot rods, pro-touring, racing, and fabrication applications.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eMaterial: \u003c\/strong\u003e4130 Alloy Steel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eFinish:\u003c\/strong\u003e Black Zinc Plated\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eLength: \u003c\/strong\u003e37.50\"\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eOutside Diameter:\u003c\/strong\u003e 1-1\/4\"\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWall Thickness:\u003c\/strong\u003e .188\"\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eConstruction: \u003c\/strong\u003eHollow\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSpline Pattern:\u003c\/strong\u003e 1-1\/4\" × 48\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eSpline Length: \u003c\/strong\u003e1\" Per End\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch4\u003eBefore Ordering\u003c\/h4\u003e\n\u003cp\u003eThis is a universal suspension component and is not vehicle-specific. Measure the required overall bar length and confirm compatibility with your sway bar arms, mounting bushings, end links, and chassis layout before ordering.\u003c\/p\u003e\n\u003cp\u003eFinal sway bar performance is affected by the bar’s wall thickness, working length, sway bar arm length, and mounting geometry.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch4\u003eWhat’s Included\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003e(1)\u003c\/strong\u003e 1-1\/4\" × 48-Spline Hollow Sway Bar\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSway bar arms, bushings, mounts, end links, and installation hardware are sold separately unless otherwise specified.\u003cbr\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch4\u003eQuestions? Contact Us\u003c\/h4\u003e\n\u003cp\u003e\u003cspan\u003e(480) 940 1806 – \u003cstrong\u003eLocal\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e1 (877) 951-1890 – \u003cstrong\u003eToll Free\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"GSI Machine and Fabrication","offers":[{"title":"Default Title","offer_id":50499635806268,"sku":"179-3750 \/ 4-DD-1","price":300.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0632\/5934\/4956\/files\/1-1_4_48-Spline_Hollow_Sway_Bar_65590bce-6e13-4192-89e5-5e73d0d31bc7.png?v=1790048294","url":"https:\/\/rpm-racing.com\/products\/1-1-4-48-spline-hollow-sway-bar-37-1-2-long","provider":"Racing Precision Motorsports","version":"1.0","type":"link"}