I recently installed the same bumper. Before I had it powder coated, I smoothed out the lower inside of the winch cable slot. It still looks like it will rub but your question got me to think about it a little more. I think that I'll put some spacers under the winch to create at least a little clearance with the cable passing through the bumper. If you do this, be sure that the longer bolts you use are grade 8 or metric 10.9. I'm using a steel cable so I am using a Warn cast iron hawse. I made tapered spacers so the hawse isn't pointing so extremely downward.