How do you get the prop off when the shaft slot for a screw driver slot, is wron out and you cannot get the nut to turn , because the screw driver cannot stay in the slot of the shaft? T he shear pin is broken the armature turns and the prop doesn't. Already tried turning on motor in reverse with a wrench on the nut, the nut does not move because it is partially rusted onto the shaft.

Boating - Minn Kota - Riptide St Saltwater 55 Bow Mount Trolling Motor