CURT 16412 Custom 5th Wheel Brackets Provides a solid mounting point for 5th wheel base rails and a 5th wheel hitch Fits specific GMC / Chevy pickup trucks (see application information) Designed to be used in combination with CURT base rails #16104 or #16204 Cuts installation time in half by eliminating the need for drilling Protected by a rust-resistant liquid Bonderite coating