Hefty weight upper clamps improve durability in difficult crashes and accommodate the inner surprise mounting system. The top of clamps utilize caster inserts for quick and easy set-up adjustments, whilst having centering pins for accurate installation and improved crash reliability. The screws installed through the base with this particular caster inserts capture the inserts in top clamps to secure the inserts while servicing the car. The screws furthermore act as top of the fingers pivot ball mounts, reducing the quantity of elements into the create and reducing fat. The top of clamps and caster inserts are manufactured from premium Swiss 7075 T6 aluminum and black colored colored anodized.