Quote Originally Posted by SouthernWake View Post
Call gatortrax but most likely a prop change is in order. They may know which one you want.
This right here. Kent sets these up all the time, but I don't recall ever seeing a 1644 with more than a 40hp. When you call them, give them the hull VIN and see if they have record of it having the "outboard package" installed. It's different bracing.