Abstract: This invention discloses a set of interchangeable bushing seat inserts which can be removably attached to the bushing seat on a hanger in any skateboard type truck to allow for different set ups and create different feelings. By having different bushing seat insert options, the rider can “tune” or adjust the feel and handling of the truck for different riding styles or courses. The interchangeable inserts may be of different geometry/shape and size and once inserted into the bushing seat area, it forms a new base and side for the bushing seat area, thus affecting the base and side of the bushing seat area. The possibilities for geometric changes to the inserts are almost limitless. This invention is also directed to a modified skateboard truck with an enlarged bushing seat which allows for the insertion (by any practical means) of specifically shaped inserts which surround the bushing.