Abstract: A protective frame for placement within enlarged wheel wells of motor vehicles having dual wheel rear fenders includes outer and inner frame rails that are attached together using multiple cross-frame supports. Attachment panels extend from the joined frame rails for attachment to the vehicle frame. An additional attachment panel is optionally provided for attachment of the protective frame to a rear hitch frame, where the latter is also attached to the motor vehicle. A rock kick-out plate can be attached to the protective frame and positioned between the two wheels for off-road use in removing wedged rocks, avoiding damage from thrown rocks upon the resumption of on-road use of the vehicle.