Originally Posted by DrewP
Cool. First time I've actually seen one. I think the front bumper only uses it if there is no addition of the apron which would require an actual threaded bumper bolt.
I think you might still use that same "plug-bumper-bolt" on the:

- 47-53 front bumper with this front splash apron (that has a tab with hole in the middle of the apron)
or
- as a filler on the 54/55st front bumper with this front splash apron (that has no tab in the middle of the apron)
or
- as a filler on any 47-55st front bumper that is installed with no front splash apron.