The RPM Hoss/Rustler 4X4 Rear Shock Tower is based on the proven RPM Traxxas Slash 4x4 shock tower and incorporates the required area to allow for the clipless body mounting system. RPM shock towers are designed to take some serious abuse without failing, because nothing is worse than having a part break when you’re out having a fun day, whether it’s at the local track or at your favorite place to bash! Package includes one rear shock tower.