- Easy to install, slide-in coil spring inserts
- Provides additional load leveling support and reduces sway
- No air leaks, air lines or compressors
- Fit-it-and-forget-it
- Made in the USA
Coil SumoSprings improve the load leveling ability of original equipment front and rear coil springs. Manufactured from micro-cellular urethane, the material’s progressive spring rate with superior damping properties creates a cushion effect, enhancing capacity and ride comfort. They install by simply being slid between the turns of the coil spring.