Manufactured by Ridetech | 11360201 | 1973-87 C10 HQ Coil-Over System, HQ Coil-Over System for 1973-1987 C10. Includes front and rear HQ Coil-Overs, front upper and lower StrongArms, Bolt-On 4-Link, Drop Spindles and Front sway bar., Ridetech manufactures exciting suspension systems that improve the handling and ride quality of your muscle car, truck, Corvette or hot rod. From restorations and show cars, to high-speed autocross and track day cars, Ridetech offers a wide range of premium products including air suspension systems (air ride), coil-overs, shock absorbers, coil and leaf springs, tubular control arms, roll bars, sway bars and much more. Product information updated on 2023-02-27