Abstract: A resiliently mounted crop separator for a combine allowing stones to pass therethrough without damage to the separator. A combine vehicle includes gathering means to gather a crop and further includes conveying means to convey the crop from the gathering means. A cylinder rotatably mounted in the combine is spaced apart from a concave frame between which the grain may be separated from the plant. The opposite sides of the rear end portion of the concave frame are resiliently mounted to the combine frame. In addition, the front edge portion of the concave frame is resiliently mounted to the combine frame. Foreign objects having thicknesses greater than the spacing between the cylinder and concave frame when passing between the concave frame and cylinder will force the concave frame away from the cylinder thereby preventing damage by the foreign objects to the cylinder or concave frame. A pair of threaded rods are connected by a pair of brackets to the rear edge portion of the concave frame.