HPI Racing 106730 Center Universal Drive Shaft Set (Front and Rear)From the ManufacturerHPI specializes in the kit type R C car or truck, which can come already assembled or in kit form, meaning you build it yourself or with a friend. While the kit R C cars and trucks cost more at first, they are more durable and faster than toy R C cars. You can also repair this type of R C car or truck, which is usually impossible or very difficult to do with toy R C cars. The cost to repair a car or truck is only a fraction of the