Exactly. prob more then halfThose holes are absent on half the images I pull up.
and the correct answer from ARB tech is..
“
Hi Mark
The holes you see there are access points for mounting a winch. There should be bolt holes for a winch behind those larger holes.
Best Regards
Jacob Simmer
ARB Tech Department “
Here’s my winch. I didn’t use the holes I forget if I needed them to be able to tighten any bolts