Redcat Racing Part # 02030 differential Pinion gear. Compatible with the following Redcat Racing vehicles: camo TT Pro, camo x4 Pro, EVEREST-10, EVEREST-16, lightning EP drift, lightning EPX pro, lightning STK, lightning STR, SANDSTORM, SHOCKWAVE, Tornado EPX/EPX pro, Tornado S30, VOLCANO EPX/EPX pro, VOLCANO S30, vortex SS. Redcat Racing is located in the United States and has a full staff of support personnel to help you with your Redcat Racing product. Consult your vehicle manual for correct fitment and assembly. Since 2005 Redcat has been your source for fast - affordable - fun!