One can modify just about anything to work on just about anything but having taken a quick glance at a pic of the stern of an Aquaterra Chinook, I have to believe there are better options out there. Aside from cables on this one likely being too short, the mount plate on the rudder assembly itself is engineered to fit on some pre-installed well nuts on the backs of Johnson Outdoors products that have a fairly "blunt" stern. From the pic I just looked at, it appears your boat has a much sharper point at the stern.Good luck.