RX3 parts can be hard to come by. I had one for a year, crashed and parted it out. Try Mike Van Steenburgh at ISC Racing Services for performance parts and upgrades. A guy who had a lot of parts a few years ago is Lee Graser, Knoxville, TN. Also, you might try George Cichon, Winnebago, IL or Al Pierce, Ashville, NC. Sorry,I don't have better contact info.