{"product_id":"qa1-67-73-ford-mustang-pro-front-coil-over-system-single-adj-10in-x-450lbs-in-aluminum","title":"QA1 67-73 Ford Mustang Pro Front Coil-Over System - Single Adj. - 10in x 450lbs\/in - Aluminum","description":"\u003cp\u003eUpgrade your 1967–1973 Mustang’s suspension with QA1’s Pro Coil System. This single adjustable coilover kit combines modern handling, ride quality, and stance adjustability in an easy bolt-in package. Featuring 10” coil springs with a 450 lb.\/in. rate, it’s the firmest single adjustable option available, delivering sharper cornering and reduced body roll for aggressive street performance and restomod builds. MODERN HANDLING \u0026amp; ADJUSTABILITY With QA1’s single adjustable coilovers, you can fine-tune rebound and compression together with 18 settings of adjustment. One knob makes it simple to soften the ride for cruising or firm it up for maximum handling response. RIDE HEIGHT FLEXIBILITY This system allows you to adjust ride height from factory stock height down to 2” lower, giving you flexibility to fine-tune stance, handling balance, and wheel\/tire clearance while maintaining proper geometry. EASY BOLT-IN INSTALLATION No cutting or welding required. QA1 designed this kit as a direct bolt-in upgrade for classic Mustangs, making it a DIY-friendly option that delivers modern suspension performance with minimal effort. FEATURES \u0026amp; BENEFITS • Application-specific fit for 1967–1973 Ford Mustangs • Single adjustable shocks with 18 settings of rebound\/compression control • Includes 10” coil springs with a 450 lb.\/in. spring rate • Ride height adjustable: factory to –2” • Direct bolt-in installation — no welding required • Durable powder-coated springs and premium hardware • Works seamlessly with QA1 tubular control arms and sway bars FITMENT NOTES • Fits 1967–1973 Ford Mustangs • Ride height adjustable: factory to -2” • Includes single adjustable shocks and 10” 450 lb.\/in.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eVehicle Fitment\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e1967-1970 Ford Mustang\u003c\/li\u003e\n\u003cli\u003e1967-1968 Ford Mustang\u003c\/li\u003e\n\u003cli\u003e1967-1969 Ford Mustang\u003c\/li\u003e\n\u003cli\u003e1967 Ford Mustang\u003c\/li\u003e\n\u003cli\u003e1968-1970 Ford Mustang\u003c\/li\u003e\n\u003cli\u003e1968-1973 Ford Mustang\u003c\/li\u003e\n\u003cli\u003e1968 Ford Mustang\u003c\/li\u003e\n\u003cli\u003e1969-1973 Ford Mustang\u003c\/li\u003e\n\u003cli\u003e1969-1971 Ford Mustang\u003c\/li\u003e\n\u003cli\u003e1969-1970 Ford Mustang\u003c\/li\u003e\n\u003cli\u003e1970 Ford Mustang\u003c\/li\u003e\n\u003cli\u003e1970-1973 Ford Mustang\u003c\/li\u003e\n\u003cli\u003e1970-1971 Ford Mustang\u003c\/li\u003e\n\u003cli\u003e1971-1972 Ford Mustang\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp class=\"pst-note\"\u003e\u003cem\u003ePlease verify exact fitment for your trim and engine before ordering.\u003c\/em\u003e\u003c\/p\u003e\u003cp class=\"pst-note\"\u003e\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e MS402-10450C\u003c\/p\u003e\u003cp style=\"font-size:13px;color:#666;\" class=\"pst-note\"\u003eImages are for illustrative purposes only. Actual product may vary.\u003c\/p\u003e\u003cp style=\"font-size:13px;\" class=\"pst-warn\"\u003e\u003cspan style=\"color:#cc0000;font-weight:bold;\"\u003e⚠ WARNING (California Proposition 65):\u003c\/span\u003e This product can expose you to chemicals which are known to the State of California to cause cancer and\/or birth defects or other reproductive harm. For more information go to \u003ca href=\"https:\/\/www.p65warnings.ca.gov\" target=\"_blank\" rel=\"noopener\"\u003ewww.p65warnings.ca.gov\u003c\/a\u003e.\u003c\/p\u003e","brand":"QA1","offers":[{"title":"Default Title","offer_id":43093397864542,"sku":"PST-qapMS402-10450C","price":854.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0433\/9049\/files\/de26e224c10b933726c1ab9622d5c17fL_5428e830-632d-4204-b736-321168f384b0.jpg?v=1785789507","url":"https:\/\/pitstoptuning.com\/products\/qa1-67-73-ford-mustang-pro-front-coil-over-system-single-adj-10in-x-450lbs-in-aluminum","provider":"PitStopTuning","version":"1.0","type":"link"}