Spring rubbers will affect the rate of your spring depending on the initial spring rate, the installed height and the actual rate of the rubber used in the manufacture of the spring rubber. Using a Bump Stop Rater or Spring Tester to analyze the rate of your springs with a variety of different spring rubbers will prove to be a good exercise.
Coil-over spring rubbers are available in 3/4” and 1-1/4” thickness. We also offer spring rubbers that are 1-1/4” in thickness for 5”- 5-1/2” springs.
Each spring rubber must be cut to install and is grooved on both sides to help seat it within the spring.