My HD 3500 Polaris winch broke.
Ordered a Suoerwinch Terra 3500 synthetic and when it arrived I realized it was too large to fit the factory winch mount.
Here is a few basic pictures of what I did to make it fit.
Make shift floor vice and a little heat to open it up
Weld in a 1" piece of flat bar and voila, new winch fits good.
Only other mod was having to move all the wiring from the passenger side of the quad to the driver side so the winch would run the proper direction.
Cheers