The RPM Traxxas Rustler 4x4 Wheelie Bar Mount is intended as a replacement wheelie bar mount for the Rustler 4x4. RPM heard the reports of issues with the stock Rustler wheelie bar mounts and produced this RPM optional replacement. These mounts improve the flex and fragility of the kit supplied part by taking a completely different approach. RPM opted to remove the rear bumper/Wheelie mount entirely! Instead, they opted for for more adjustability and a solid mount that allows a wheelie bar to work properly. The design is based on a very simple pair of mounts, affixed using stock locations, that allows an adjustable Traxxas wheelie bar (Traxxas TRA3678 – not included) to bolt to the Rustler 4×4. Simple, yet effective. These mounts are molded from RPMs trademark blend of nylons for the ultimate in strength and durability and made in the USA! Notes: RPM Wheelie Bar Mounts replace Traxxas TRA6737 Bumper Mount & TRA6776 Wheelie Bar. Traxxas TRA3678 Wheelie Bar required (not included) for completion.