Tested on the fastest stock suspension cars in the world, Calvert’s Split Mono Leafsprings are designed to control and reduce excessive body separation in rear suspension and plants the rear tires without unloading.

Parabolic rear half design (thicker on the middle end, gradually thinning to standard thickness on the eye end) distributes the main spring pressure point through the length of the half, reducing spring breakage over time. Overlapping the spring halves contributes to the strength necessary to withstand hard accelerations and stops on the track.

All of Calvert Racing’s 2.5″ wide Split Mono Leafsprings are assembled to order with Calvert designed and manufactured grade 8 hardware and heavy-duty alignment clamps. Aluminum bushings are pressed into the front spring eyes and polyurethane bushings in the rear spring eyes, these springs have been proven to withstand over 2,500 HP at ¼ mile ETs in the 6s.

NOTE: Calvert Split Mono Leafsprings are designed to work with CalTracs to maintain spring arch. While street driving does not put undue stress on the springs, racing with Calvert springs without a traction device installed may result in bent or de-arched springs.

Made in USA.