This is an optional TeamSR Carbon Fiber Ackerman Rack, and is intended for use with the Durango DEX210. You can remove the stock plastic piece and achieve ultimate steering precision with TeamSR's DEX210 front ackerman rack. Designed and cut in the USA from high grade Quasi-Isotropic carbon fiber, this ackerman rack uses all the factory mounting and adjustment holes with an optional hole for more adjustability and tuning. This kit includes all the necessary hardware to directly bolt-on. You don't even have to glue the edges, they are already Professionally Pre-Glued.