CKD0453 F450 Gooseneck Hitch Set (6.3mm ball, #10-32 thread quick release connector)
CKD0453 F450 Gooseneck Hitch Set (6.3mm ball, #10-32 thread quick release connector) This is for F450 DL Series Trucks. Ball end is 6.3mm with quick connector which has 10-32 thread end.