Dwayne_MB
Guest
We use a "Hopper Topper"made in ND.E-mail me and I can look up the specifics.It is a 2 foot canvas collapsible extension that when folded down will allow a R-72 to fit in a 14' high door.When extended it gives nearly 400 bushel capacity.BUT....only use it for light crops like oats,barley,sunf as it would be too much weight for the combine if filled with corn.