The objective of the present invention is to provide a vehicle motion control device capable of controlling the driving force distribution to the wheels with superior stability and response while effectively utilizing the tire grip. The present invention also provides an improved process for the preparation of 7-chloro-1–5-oxo-2,3,4,5-tetrahydro-1H-1-benzazepine. A cleaning member is removably attached to the top side of the base. The bottom of the concave site is closer to the openings than the bottom of the pockets, thereby allowing base oil from grease in the concave site to better migrate onto the bearings and so lubricate the shaft bearing. The health score may be based on an intensity score. The spindle has a first threaded hole and a second threaded hole radially formed in the spindle at an obtuse angle and setscrews screwed through the central protrusion into the first threaded hole and the second threaded hole hold and can be used to adjust the spindle.