{"product_id":"corvette-seat-foam-back-4-inch-1978-1982","title":"C3 1978-1982 Corvette Seat Foam - Back 4-Inch","description":"\u003cdiv\u003e\n\u003cp\u003eReplace collapsed or deteriorated rear cushions with this 4-inch bolster seat back foam tailored for 1978–1982 Chevrolet Corvette coupes and convertibles. Worn foam in late-model C3 interiors routinely loses structural integrity, shifting driver weight forward and eliminating critical lateral support during cornering. Drop-in installation recreates the exact factory contour and rebound characteristics while returning proper hip and shoulder positioning.\u003c\/p\u003e\n\u003cp\u003eMolded from dense automotive-grade urethane, this reproduction pad matches original mounting geometry and thickness tolerances to eliminate upholstery bunching. The reinforced 4-inch bolster side walls provide targeted lumbar contact that prevents sliding on firm tracks or spirited highway drives. Because the backing follows factory specifications, the cushion integrates cleanly with both genuine GM-style and aftermarket vinyl upholstery applications, maintaining consistent fabric tension across the seat surface.\u003c\/p\u003e\n\u003cp\u003eThis seat back foam targets C3 models equipped with the standard reinforced side bolster configuration. Verify your existing seat frame supports the 4-inch profile before purchase, as certain specialty trim packages and early production runs utilize narrower layouts. When confirmed compatible, this foam establishes the correct foundation for seat cover installation, full interior restoration, or partial refurbishment, delivering reliable support without altering original chassis or safety parameters.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"ca4","offers":[{"title":"Default Title","offer_id":41228699402289,"sku":"A37210DS","price":148.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0903\/4078\/files\/7210-1.png?v=1789587106","url":"https:\/\/www.corvetteguys.com\/products\/corvette-seat-foam-back-4-inch-1978-1982","provider":"CorvetteGuys.com","version":"1.0","type":"link"}