New fixed gear adapters #3790 take the guesswork out of setting gear mesh and ensure a rock solid hold. Compatible with all Taxes 2WD models including Slash, Rustler, Bandit, and Stampede, the adaptor locks in the perfect gear mesh and holds the motor in position jump after jump, and pack after pack. The adapters work with both Brushed Titan motors and the powerful Velamen brushless systems. The package includes 5 adaptors that cover 7 popular gearing combinations, along with a reference sheet to make finding the right adaptor quick and easy. Use Taxes stock and hop-up replacement parts to get the most out of your Taxes RTR vehicles. This product is made from high quality materials and designed for long-lasting performance. This is replacement hardware for use on Taxes vehicles; consult your user's manual for exact parts listings.