With the Warn Zeon 10s, it is a very snug fit, but she fit in there. My recommendation is to use a smaller sized flat washer on the top internal bolts that secure the bumper to the frame horns. That was a major sticking point my first go around, but switched them out when I remounted everything after the coating. Assembly went together much easier.I just ordered this bumper. Any issues with winch fitment?