SuperStops® are designed for trucks equipped with auxiliary top overload leaf springs. SuperStops replace factory contact pads, bump stops. They are designed to help reduce sway and eliminate noise.


SuperSway-Stops are designed to stop sway and reduce lean by filling the void between top overload spring and contact points on the chassis.


When air springs are used on vehicles with top overload springs, a greater distance between overload spring and chassis is created. This larger space leads to sway.


Traditional contact pads for top overload springs create excessive noise when in contact. This is a problem for transportation applications with passengers.


SuperStops replace the noisy factory contact pads with damping, noise reducing, SuperSilent-Stops, perfect for buses, limousines and other transportation applications.

Frequently Asked Questions

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If you are using air springs on the rear of your vehicle and it is equipped with a top overload spring, you are probably unhappy with the amount of sway in the vehicle. This is because your air springs lifted the chassis up higher from the top overload springs, rendering them useless. The overload spring will not provide any benefit unless it is engaged. By filling that void with SuperSway-Stops, you’re allowing the overload spring to engage earlier. Once engaged, the SuperSway-Stops resist and have a progressive spring rate just like SumoSprings.
Bus and limousine applications, using vehicles equipped with a top overload spring, can have loud and obnoxious noise generated by traditional contact pads. This noise is created by the overload spring scrapping against the contact pad under pressure. SuperSilent-Stops dampen this energy, reducing the noise. This creates a quieter and more enjoyable ride for you and your passengers.
No. SuperStops, both Sway and Silent Stops, are only applicable for vehicles equipped with a top overload spring.
Yes and no. SuperStops are the same as contact pads in that they replace and bolt in the same place as contact pads. They are not the same in design and function. Contact pads are typically thin pieces of rubber. SuperSway-Stops are a tall piece of micro-cellular urethane. SuperSilent-Stops are a damping piece of urethane. Contact pads are more than likely not engaged because of their thin design, or engaged and creating excessive noise. SuperStops are designed to be engaged, allowing your top overload spring to do the work it was installed to do.