These new aluminum Separate Suspension Mounts for TA05 Ver.II chassis machines can be used in place of the standard kit M5, 6, 8, 9 parts allowing you to further customize your toe-angle settings. In addition, when replacing the suspension mounts you have the choice of two suspension ball installation pitches (1C-1XC). When using them on the rear side of the front suspension mount, 5mm Suspension Ball (Item 50994) or 5mm Fluorine Coated Suspension Ball (Item 53709) must be used.