An agricultural harvester including a chassis and a threshing and separating section for threshing and separating grain from gathered crop material. The threshing and separating section is carried by the chassis. The threshing and separating section includes at least one concave having a hooking feature, at least one sliding support, and a frame assembly for carrying and coupling the at least one concave thereto. The frame assembly includes a support bar allowing the hooking feature of the at least one concave to hook over the support bar to support one side of the at least one concave. Another side of the at least one concave is coupled to the frame assembly. The at least one sliding support supports the at least one concave as the at least one concave is moved toward or away from the support bar.