These little adjusters are awesome, and in more ways than one. By mounting the rear coil and spring perch assembly on a screw jack, this parts allows you to quickly and easily adjust the rear ride height of the car with only a wrench. Plus by employing the use of standard coilover springs you are now free to find the spring rate that is right for you. Swapping a spring is quick and easy, we’ve even done it between laps at the track. It also makes corner balancing the car faster and simpler, ultimately giving you even more control over the feel you want at the racetrack.
This weight jacker kit has been designed to work with either a 2.5″ x 6″ diameter coil spring or a 2.25″ x 5″ or 6″ coil spring depending on spring rates. Installation takes only an hour or so and requires no modification or cutting of your car.