Increase traction and add ride height adjustability to the rear of your 1979-2004 Mustang with a Coil-Over Conversion Kit from BMR Suspension. OE-style lowering springs can drop the vehicle, but do so at the expense of suspension and shock travel. By utilizing a conventional coil-over, the vehicle can ride at a lower ride height, while still retaining full suspension travel. BMR manufactures its Coil-Over Conversion Kits from CNC-laser cut, CNC-formed 1/4-inch steel plate for strength, lightweight, and, precise fitment. Whether you want to aggressively lower your Mustang or you want the added suspension control you get with coil-overs, BMR makes it easy to add coil-overs to the rear of your car. Designed for street performance, drag race, and handling applications, BMR makes its coil-over brackets from strong 1/4-inch laser-cut steel plate plate. These plates weld in to the chassis and rear end, adding additional strength to the mount. This kit is designed to work with any coil-over with a 1 1/4-inch-wide bushing and 1/2-inch bolt hole. When performance is a must, rely on BMR Suspension! BMR designed the CCK745 with Viking Performance coil-over shocks. BMR recommends Viking part number C209W shocks. The C209W shocks require 10- or 12-inch springs. BMR recommends a 10-inch spring for spring rates 150lb/in or less, and 10-inch springs for spring rates 175lb/in or higher using this length shocks. BMR Suspensions CCK745 Weld-In Coil-Over Conversion Kit is available bare for welding convenience and long-lasting good looks. Installation time is 2-3 hours. Proudly made in the U.S.A.!