1969 dodge charger seatbelts...male side design question

[skippychad]

1969 charger, base, 383...looking to replace current seat belts.  I'm seeing two very different male end buckles.   one has the typical end with a hole in the middle.  the other is solid with two tabs off of each side.   which is the proper one?  i believe the ones that are in there now have the hole in the center of the male end.    hard to see which style they are selling on a few sites since most show the buckle engaged.

[doctor4766]

My March '69 Charger has a rectangular hole in the solid male end.

[skippychad]

thanks