Today I installed the right Main Gear Mount.

The one bolt under this bulkhead is impossible to use the hole in the mount leg to drill outward.

The holes are 1" apart so I drilled the one I could get to and then drew a parallel line and marked 1" away

and it went right through the hole already drilled in the mount leg. Used a 1/8" bit then countersunk both and

then drilled them both to 3/16".  Came out perfectly.