(1) Lift up around 25-35mm – Better ground clearance which deemed for 4x4 purpose. (2) GVM upgrade about 30% - Payload increased as a work horse / readiness for accessories upgrade (winch, bull bar, canopy, etc). (3) Dynamic balance driving experience – ALL cars are specifically tuned to be well handle with / without payload. ALL LEAF SPRING KITS CONTAIN: 2pcs Springs, 2pcsShock Absorbers, 4 pcs Ubolts and 4pcs Bushes. ALL COIL SPRING KITS CONTAIN: 2pcs Springs and 2pcs Shock Absorbers.