Realtreegrizzly, I went from a warn 2000 to a warn 4000 and the wires and contactor were NOT the same. Wires for the 4000 were heavier gauge and contactor was bigger. What I would recommend, and what I will do eventually, is mount the big winch on the front and the little one on the rear, assuming you do have to change out wires and contactor like I did.