{"product_id":"swift-springs-z60-178-140-swift-springs-z60-178-140-coil-over-spring-785-lb-in-rate-blue-steel","title":"SWIFT SPRINGS Z60-178-140 Swift Springs Z60-178-140 Coil-Over Spring, 785 lb\/in Rate, Blue Steel","description":"\u003cp\u003eThe Swift Springs Z60-178-140 coil-over spring is engineered for performance suspension applications that require consistent spring behavior and dependable support. Built from high-quality spring steel, this coil spring delivers a firm 785 lb\/in spring rate, equivalent to approximately 14 kgf\/mm, for applications requiring precise control over suspension movement. Its coil-over configuration makes it suitable for compatible racing, track, and high-performance suspension systems.\u003cbr\u003eThe spring features a 2.36-inch inside diameter and a 7-inch free length for use with matching coil-over components. Its carefully formed coils are designed to provide predictable compression characteristics and repeatable performance under demanding driving conditions. Whether used during a new suspension build or as a replacement spring, the Z60-178-140 helps support accurate suspension tuning and consistent vehicle response.\u003cbr\u003eA blue powder-coated finish provides a durable protective surface while giving the spring a clean, recognizable appearance. The finish helps resist typical handling wear and supports long-term service in properly maintained suspension systems. This Swift Springs component is sold individually, making it a practical choice for replacing a worn spring or configuring a vehicle with a specific spring-rate combination. Verify coil-over compatibility, spring seat requirements, and suspension setup before installation to ensure proper fitment and performance.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eBrand: Swift Springs\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePart Number: Z60-178-140\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eApplication: Coil-over suspension spring for compatible performance and racing systems\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSpring Rate: Approximately 785 lb\/in, equivalent to 14 kgf\/mm\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eConstruction: Durable steel spring material\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFinish: Blue powder coat for added surface protection\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eConfiguration: Individual replacement or suspension tuning spring\u003c\/li\u003e\u003c\/ul\u003e","brand":"SWIFT SPRINGS","offers":[{"title":"Default Title","offer_id":48970760487134,"sku":"SWIZ60-178-140","price":146.74,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0760\/7690\/8766\/files\/SWIZ60-178-140.jpg?v=1788292590","url":"https:\/\/www.racingsupply.ca\/products\/swift-springs-z60-178-140-swift-springs-z60-178-140-coil-over-spring-785-lb-in-rate-blue-steel","provider":"Racing Supply Co.","version":"1.0","type":"link"}