Andy, both the above post are telling you correct. The Fortrex mount is drilled to match MotorGuide holes. the “outside” set of holes is under the starboard side plastic side plate. Remove the front plastic piece on the mount that turns the motor, then remove the side plate and youll see the holes. Depending on which Cat you have, you may have to use the isolators used by Motorguide to raise the mount enough to clear the bow trim / accessories switch. The Fortrex has a $100.00 rebate offer now. If I can help, let me know.JohnJones Trolling Motor Services870 773 3474Motorguide/MinnKota/PowerPole/Lowrance/Humminbird