Love JT and going to get one soon, but seriously WTF is this? Even my 1999 TJ has no holes at this place.
Will it cause any problems? Where would water go if gets in it?
It you are !looking at the hole above the bottom hinge, that is a hole for a weld jig in the frame assembly, it your worried about the hole buy a grommet from a auto parts store and install. The grommet size appears to be about 10 mm.