Provided is a crop divider hinge kit and method of installation and use that facilitates do-it-yourself retrofitting of existing combine harvester heads to allow their crop dividers to pivot out of the way for transport. Hinge kits may be adapted for use with frames having a square tube portion and may comprise a replacement portion of square tubing pivotably connected with a sleeve portion adapted to receive therein and be affixed to a cut portion of the square tube frame. Quick-disconnect fastening mechanisms may be used in connection with hinge kits, including in connection with removably fastening crop divider support members.