Layout of body production lines (transportation, including inventory systems) should be redesigned using lean techniques. Thus, roughhouse in the work environment and irregular stacks of work-in-process inventory (these problems threatens the security of working at the same time) will be eliminated. Furthermore, at this stage, the applicability of the kanban system can be reviewed. Thanks to the pull system, when the Kanban finish, parts not to be produced and not to be transported will provide the amount of the produced parts as the needs of next process. This allows WIPs eliminated. This system should include mechanical section as the supplier of the line and the assembly line as the customer of the line. In short, the whole production system should work with this philosophy. However, at the end of such a feasibility study, it is the management to make a radical decision such as transition from pull system to the push system.