Draw-Tite Class IV Custom Fit Trailer Hitch Receiver. Never used. 2" square receiving tube, 31" between bolt holes. Fits Chevy and GM trucks with 8’ bed from 1963-1991 and Ford trucks from 1963-1974. For complete list of corresponding vehicles, go to https://www.drawtitehitches.com/products/Class_IV_Custom_Fit_Trailer_Hitch_Receiver,41001