This is a replacement Mugen 13 Tooth Bevel Gear, and is intended for use with the Mugen MBX7 1/8 scale nitro buggy. This gear is used in the front and rear gear boxes.
This is a set of replacement rubber pivot ball caps and dust boots for the Traxxas Revo. These are the dust covers that are used to stop the dirt from entering into the pivot balls for the front and rear uprights, and also includes the threaded inserts that are used to hold the pivot balls in place.
This is a replacement stock 38 tooth spur gear for the Traxxas Revo monster truck. This spur gear goes on the gear box to transfer power from the clutch bell on the engine into the transmission case.