Aluminum rear-front 1-piece suspension system system owner was redesigned permitting mounting from straight back bulkheads into the owner for improved flex related to back suspension system. The 1-piece owner is placed towards the framework for an improved centering. A sizable part supply mounts was in reality redesigned to utilize the square composite bushings through T4 and XB4 vehicles. The square eccentric bushings wthhold the right modification using this internal hinge pins from previous NT1s, but range from the ability to modify the pin width to expand the roll center and geometry modifications designed for a corner suspension system system. The holders may also be narrower that permits to put in the hands more closer together to generate more traction