Traxxas 8161 long GTS shock shafts are intended for Long GTS shocks found in the TRX-4 Long Arm Lift Kit. Sold as a pair. Includes bump stops. Use Traxxas stock and hop-up replacement parts to get the most out of your Traxxas vehicles. This product is made from high quality materials and designed for long-lasting performance. This is replacement hardware for use on Traxxas vehicles; consult your user's manual for exact parts listings.