{"product_id":"umi-performance-64-66-gm-a-body-factory-height-springs-rear","title":"UMI Performance 64-66 GM A-Body Factory Height Springs Rear","description":"\u003cp\u003eA spring is a spring right? Wrong! When UMI  chose to manufacture our own line of springs we went all out. Designed in  conjunction with a leading Sprint Cup chassis engineer, these springs are the  best in the business. UMI’s springs are designed to add  modern handling and a crisp ride while maintaining the factory muscle car  appearance. The rear springs are wound from 9254 CrSi premium wire and feature  a linear 130 lb\/in rate. The linear rate provides consistent handling characteristics  which are important for Auto-x and Pro-Tour applications while the increase in  stiffness reduces body roll and prevents the “floating” feeling so common with  the A-body. These springs are suitable for Auto-x and Pro-Tour applications as  well as corner carving and general cruising.  They have a tough, black powder coat finish and UMI proudly  manufactures these premium quality springs in the USA.\u003c\/p\u003e\u003ca href=\"https:\/\/d32vzsop7y1h3k.cloudfront.net\/9dcf7f875f57c8dbb2c43e6d0dd451fc.PDF\"\u003eInstallation Instructions\u003c\/a\u003e\u003cbr\u003e","brand":"UMI Performance","offers":[{"title":"Default Title","offer_id":41288088813700,"sku":"UMI4048R","price":334.49,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0372\/9676\/7108\/products\/1f521b20a292744114fe25af8371c7c2.jpg?v=1675155513","url":"https:\/\/toofastautoparts.ca\/products\/umi-performance-64-66-gm-a-body-factory-height-springs-rear","provider":"Too Fast Auto Parts","version":"1.0","type":"link"}