{"product_id":"umi-performance-64-66-gm-a-body-1in-lowering-spring-set-rear","title":"UMI Performance 64-66 GM A-Body 1in Lowering Spring Set Rear","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. These 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\/cruising. They have  a tough black powder coat finish and UMI proudly manufactures these premium  quality springs in the USA.\n\u003cp\u003eUpgrade the rear suspension of your classic GM A-Body with the UMI Performance 4052R lowering spring set. Designed for improved handling in Auto-X, Pro-Touring, corner-carving, and spirited cruising applications, these premium springs help reduce body roll and minimize the floating sensation commonly associated with A-Body vehicles. The approximately 1-inch lowering design also provides a more purposeful stance while supporting responsive suspension performance.\u003cbr\u003eUMI Performance developed these springs in conjunction with a leading Sprint Cup chassis engineer, using premium 9254 chrome silicon wire for strength, durability, and consistent performance. Each spring features a linear 130 lb\/in spring rate, delivering predictable handling characteristics through turns and transitions. The linear rate is especially beneficial for drivers seeking stable, repeatable suspension response during performance driving.\u003cbr\u003eFinished with a durable black powder coat, the UMI Performance 4052R springs are built for long-lasting service and are proudly manufactured in the USA. This rear spring set is designed for select 1964-1966 Buick Special, Pontiac LeMans, and 1966 Pontiac GTO applications. Verify vehicle configuration and suspension requirements before installation. Professional installation and a complete alignment are recommended after lowering the vehicle.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eBrand: UMI Performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003ePart Number: 4052R\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eApplication: Rear suspension for select 1964-1966 GM A-Body vehicles\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eLowering: Approximately 1 inch\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSpring Rate: Linear 130 lb\/in\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eMaterial: Premium 9254 chrome silicon wire\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFinish: Durable black powder coat\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eUse: Suitable for Auto-X, Pro-Touring, corner carving, and cruising\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eManufacturing: Proudly made in the USA\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\nBuick Skylark Base 1964\u003cbr\u003e\nBuick Skylark Base 1965\u003cbr\u003e\nBuick Skylark Base 1966\u003cbr\u003e\nBuick Special Base 1964\u003cbr\u003e\nBuick Special Base 1965\u003cbr\u003e\nBuick Special Base 1966\u003cbr\u003e\nBuick Special Deluxe 1964\u003cbr\u003e\nBuick Special Deluxe 1965\u003cbr\u003e\nBuick Special Deluxe 1966\u003cbr\u003e\nChevrolet Chevelle Base 1964\u003cbr\u003e\nChevrolet Chevelle Base 1965\u003cbr\u003e\nChevrolet Chevelle Base 1966\u003cbr\u003e\nChevrolet Chevelle Deluxe 1965\u003cbr\u003e\nChevrolet Chevelle Deluxe 1966\u003cbr\u003e\nChevrolet Chevelle SS 1964\u003cbr\u003e\nChevrolet Chevelle SS 1965\u003cbr\u003e\nChevrolet Chevelle SS 1966\u003cbr\u003e\nChevrolet El Camino Base 1964\u003cbr\u003e\nChevrolet El Camino Base 1965\u003cbr\u003e\nChevrolet El Camino Base 1966\u003cbr\u003e\nChevrolet Malibu Base 1964\u003cbr\u003e\nChevrolet Malibu Base 1965\u003cbr\u003e\nChevrolet Malibu Base 1966\u003cbr\u003e\nOldsmobile 442 Base 1964\u003cbr\u003e\nOldsmobile 442 Base 1965\u003cbr\u003e\nOldsmobile 442 Base 1966\u003cbr\u003e\nOldsmobile Cutlass Base 1964\u003cbr\u003e\nOldsmobile Cutlass Base 1965\u003cbr\u003e\nOldsmobile Cutlass Base 1966\u003cbr\u003e\nOldsmobile Cutlass Holiday 1964\u003cbr\u003e\nOldsmobile Cutlass Holiday 1965\u003cbr\u003e\nOldsmobile Cutlass Holiday 1966\u003cbr\u003e\nOldsmobile F85 Base 1964\u003cbr\u003e\nOldsmobile F85 Base 1965\u003cbr\u003e\nOldsmobile F85 Base 1966\u003cbr\u003e\nOldsmobile F85 Deluxe 1964\u003cbr\u003e\nOldsmobile F85 Deluxe 1965\u003cbr\u003e\nOldsmobile F85 Deluxe 1966\u003cbr\u003e\nOldsmobile F85 Holiday 1966\u003cbr\u003e\nPontiac GTO Base 1964\u003cbr\u003e\nPontiac GTO Base 1965\u003cbr\u003e\nPontiac GTO Base 1966\u003cbr\u003e\nPontiac LeMans Base 1964\u003cbr\u003e\nPontiac LeMans Base 1965\u003cbr\u003e\nPontiac LeMans Base 1966","brand":"UMI Performance","offers":[{"title":"Default Title","offer_id":67603274367292,"sku":"umi4052R","price":234.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1865\/9007\/files\/c6517965226ad1288bd3bc75ec8feb4a.jpg?v=1790743855","url":"https:\/\/necycleshop.com\/products\/umi-performance-64-66-gm-a-body-1in-lowering-spring-set-rear","provider":"NE Cycle Shop","version":"1.0","type":"link"}