INTRODUCING PRO BUSHINGS – DUAL-STAGE SUBFRAME & DIFFERENTIAL BUSHING KITSPro Bushing Kits are designed to provide you with OE like comfort during cruising and normal operation but give you the performance and stiffness needed during aggressive driving and under load. This provides excellent chassis response and prevents movement of driveline components protecting your differential, driveshaft and axles.These proprietary bushing compounds offer the benefits of traditional rubber on the street and a solid mount at the track. Stage 1 Poly features a softer core that provides more comfortable characteristics on the street, which helps to eliminate NVH. Stage 2 features a dense, reinforced polyurethane compound that supports a solid aluminum core to eliminate excessive driveline travel. During Hard launching this poly creates a lockout-like effect.It is recommended to use the Heavy Duty Dual Bushing Diff Mount in conjunction with the GForce Polyurethane Cradle Pro Bushing Kit. Anytime you can marry the durometer of the bushings within the driveline, you increase the performance of those parts and limit the risk of failure.Need something more? GForce offers both the cradle bushing kit and the diff mount with solid bushings.