QA1 Coilover Shock and Spring Packages offer a convenient easy to order pair of shocks and their corresponding springs.  These kits combine our best-selling Proma Star shocks with powder coated springs into one package that makes ordering more convenient and streamlined.  Also included are a set of spanner wrenches and thrust bearings to make your ride height adjustments and ensure you have everything you need to finish the job. PRECISION TUNING Double adjustable shocks feature independent adjustment of compression and rebound damping with 18 clicks of adjustment on each knob. ENHANCED PERFORMANCE More tunability to achieve better traction and handling. TYPICAL USES Adaptable to a wide range of applications from high performance race cars to casual street drivers that love to fine tune their ride. RIDE HEIGHT The shocks should measure between 13in.-13.5in. from center of eyelet to center of eyelet when at vehicles desired ride height. More kits are available with other shock length options. SPRING RATE Spring rate selection can be very subjective and can vary depending on multiple variables and uses. : 600 lbs./in. Spring Rate: 1800-2100 lbs. independent suspension axle weight recommended: This combination is not typically used with a solid axle: More kits are available with other spring rate options