On the desk today, we have a X-Brake by X-Eng. This is a complete, bolt on parking brake replacement to the stock drum setup, and converts you to a disc brake setup. The caliper mounting bracket has a built in skidplate, and is made from 1/4" thick steel. The disc itself is 8-3/4" in diameter, giving you superior ability to keep your vehicle from rolling away on a steep incline. Fits Series, D90/110, D1, & RRC vehicles.