{"product_id":"umi-performance-64-72-gm-a-body-factory-height-springs-front-4049f","title":"UMI Performance 64-72 GM A-Body Factory Height Springs Front 4049F","description":"A 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. Our front springs are wound from 5160 CrSi premium wire and feature  a linear 530 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. The ride height is engineered to  be level with standard SBC, Pontiac 400 and aluminum head\/intake Big Block  Chevy as well as LS power (lightened cars may require spring trimming). The front springs are also suitable for full  weight Big Block applications when ¼” nose down rake is desired. They have a tough, black powder coat finish and UMI proudly  manufactures these premium quality springs in the USA.","brand":"UMI Performance","offers":[{"title":"Default Title","offer_id":46386051023076,"sku":"UMI4049F","price":169.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0661\/2566\/0388\/files\/63c19b25c9f260d13f13555b1d6b5669L_f01b09e0-a166-4631-99df-4d9bde465014.jpg?v=1749504720","url":"https:\/\/www.carandtruckparts.com\/products\/umi-performance-64-72-gm-a-body-factory-height-springs-front-4049f","provider":"CarAndTruckParts.com","version":"1.0","type":"link"}