Wisefab Rear Knuckle Kit for Nissan 370Z By completely revising rear kinematics Wisefab have created the ultimate rear knuckle kit for Nissan 370Z. By correcting roll centre lowering anti-squat and revising camber gain/bump steer this kit will give you the ultimate in terms of stable usable traction. All components are made from high strength steel and the kit uses rose joints and spherical bearings throughout. Kit contents : Rear knuckles Complete rear arm kit All fittings required for installation Notes regarding fitment: This kit requires coilovers (spring around the damper not OEM inboard spring). Minimum wheel size is 17.