SuperSway-Stops
SuperSway-Stops address a specific interaction between rear air springs and auxiliary top overload leaf springs. When added air support raises the chassis away from the overload contact points, the truck can lose some of the stabilizing contribution those overload springs normally provide.
Restore earlier overload engagement
These tall urethane components fill the space between the top overload spring and its chassis contact points. Earlier engagement brings the overload leaf into the suspension's work sooner. The purpose is to reduce the gap created by the raised chassis, not to replace the truck's main leaf springs.
Progressive resistance under compression
SuperSway-Stops use dense micro-cellular urethane with a progressive spring rate, similar in principle to SumoSprings. As compression increases, resistance increases. This behavior provides a more gradual contribution than treating the contact point as a rigid stop, while allowing the top overload spring to contribute support.
Different from ordinary contact pads
A contact pad and a SuperSway-Stop do not perform the same job simply because both sit near an overload spring. SuperSway-Stops are designed to engage and continue resisting compression. Their height and compressible construction are central to that function, particularly when air springs have opened the original engagement gap.
Use only with top overload springs
SuperSway-Stops require a vehicle equipped with a top overload spring. They address that spring’s engagement rather than replacing the main leaf pack. Keep air pressure within the helper kit’s instructions and inspect the overload contact points so added support does not conceal damaged springs or hardware.
Related reading
Frequently asked questions
Can I use SuperSway-Stops without a top overload spring?
No. Their function depends on engaging an existing top overload spring.
Do they replace rear air springs?
No. They address overload-spring engagement on a compatible suspension, while the air springs continue their separate load-support role.
