It would be best ot figure out which leads you have reversed. It could be the 2 ends on the winch, the others ends of those cables at the contactor, OR the 2 power supply cables (12v + and 12v- )I got my new Viper hook up finally after some mount problems and my switches for the handlebar switch and remote are backwards. Is there a simple way to reverse some wires?
On a DC reversable motor there is no such thing as pos or neg post. They color code them for continuity in wiring, and to make sure your switch doesn't work backwards... if it is hooked up correctly at the control boxAnd no problems doing that? You would think putting the pos on the neg post would hurt something.
Has the cable ever been completly un wound from the drum? I've seen cables wound in the wrong direction after they had been fully extended. This would make it seem like the switch is backwards. Just a thought.
I also asked the tech guy at viper about spool direction. He said viper should run off the top but he said you can reverse that too. Mine had too much of an angle of the top so I wound it up the other way so it was a straight shot to the rollers.