Improve the smoothness and performance of your Traxxas vehicles with these CNC machined aluminum shock body and lower caps, Featuring an upper cap o-ring to provide a better seal (works especially well with the ST2267 shock caps), Lower shock cartridge area has been redesigned to better accomodate the stock Traxxas O-ring and plastic sleeve for the smoothest shock operation, This is a must have upgrade for the best suspension performance of your Traxxas buggy or Trucks, Rear Shock Body and Lower Caps, Color: Gun Metal, SKU: RCST3766GM