This is the Complete Rear Differential for the Tekno RC NT48 Truggy Kit. Assembled and ready to install Two M2.5×9.8mm Pins for Outdrives One each Front and Rear Outdrive One Differential Seal Two O-Rings Two 6x17mm Shims Two Cross Pins One Differential Case Internal Diff Gear Set One 40T Straight Cut Diff Ring Gear (requires TKR5405 Diff Pinion Gear, TKRC5405) jxs 03/09/15 ir/jxs &