SummitLink Aluminum Upgrade Thunder Tiger MT4 G3 Chassis Bracket and Body Mount Post Front Aluminum Upgrade Thunder Tiger MT4 G3 Chassis Bracket and Body Mount Post Front Combo set of aluminum upgrade parts for Thunder Tiger MT4 G3 Chassis Bracket and Body Mount Post Front. It is well know the factory chassis of Thunder Tiger MT4 G3 is easy to bend in hard landings. With the aluminum chassis bracket enforcement, you no longer have to worry about bent chassis problem! The factory body mount post is made of plastic and will bend and wear out quickly. With the aluminum body mount post, it will never bend or wear out again! This combo includes all the blue parts shown in the pictures.