I bought a used Corbeau Harness bar off a guy in my Mustang club. He had a 2012 Boss so it should be the same. However, there's a small hole in the harness bar that this metal bracket goes through (below the bole hole) and the metal bracket on the factory seat belt won't fit through it. Has anyone ran into this and what was your fix? Drill out the hole in the harness bar a bit more? Grind down the metal bracket on the factory seat belt? Neither of these options sound the best but if I had to pick one I suppose I can find those metal brackets as a part from Ford if I need to replace them.

Bracket



Harness bar (smaller hole)