Andersen 4in Rapid Hitch 2 X 2-5/16in Greaseless Alumiball (3461) 4" Drop / 4" Rise GTWR: 8,000 lbs with 2" ball, 10,000 lbs with 2-5/16" ball Quickly adjust height: Pull pin, adjust, slip pin back into place - done! Greaseless AlumiBall -no need to lubricate tow ball and trailer receiver! Meets V5 and SAE J684 certifications.