Hefty fat upper clamps improve durability in difficult crashes and accommodate the internal surprise mounting system. The most notable clamps use caster inserts for fast and simple set-up modifications, while having centering pins for accurate installation and enhanced crash reliability. The screws installed through base with this caster inserts capture the inserts in top clamps to secure the inserts while servicing the automobile. The screws moreover become the surface of the hands pivot ball mounts, reducing the amount of elements towards the create and reducing fat. The top clamps and caster inserts are manufactured from premium Swiss 7075 T6 aluminum and black colored colored colored anodized.