difference between '67, and '68 turn signal buckets

[HONDAWASAKI]

Hello every one, what is the difference in '67, and '68 in how the turn signal buckets mount? I have a '67 that only came with one bucket, and I bought a set of "'67-'68" turn signal assemblies and apparently the '68 is different, and these are '68 only. The '67 mounts with studs on the bottom, and '68 mounts with studs on the back I guess?

So my question is, does the '68 have the same grille, and use an adapter bracket? Or does it have a different grille, and different turn signal buckets? Or are these turn signals completely the wrong ones?
Thanks in advance.