Leaf Spring Bushing Kit. The Pivot Works Leaf Spring Bushing Kit restores worn suspension components, eliminates clunking noises, and brings back proper articulation. Designed as an O.E.-quality direct replacement, the kit includes all the necessary bushings to rebuild both rear leaf springs. Inner and outer diameters are machined to match exact O.E.M. specifications. Includes all components necessary to rebuild both driver and passenger side leaf springs. Built with heavy-duty materials designed to handle demanding trail or job-site conditions. Kit Includes: 4 K-AB-004 bushing(s) - 15 x 48 x 34. 8 K-AB-009 bushing(s) - 18x31.5/36X30/5.