651 Series Full-length Mirrors are located on each side of the cab exterior to provide clear vision for the operator and crew. Full-length mirrors come in two sizes and offer wider vision than previous models. The "Rapid-Adjust" feature on the 651-101R & L and 107R & L allows quick realignment of mirror angles for optimum vision. The higher quality extrusion design protects and contains the glass mirror better if impacted. The new design also enhances air flow characteristics and offers new cosmetic improvements as well.