Question about side mirrors

[shrike]

I ordered a mirror for the drivers side of my truck and when it arrived, the holes didn't match up at all. These look like the factory holes, there is a plate inside the door with nuts on it.

When I ordered the mirror, there was only one type available for that year (according to the catalog). Were there other styles available in 1970?

For the record, this is what the holes look like on the truck:

(sorry for the poor quality, its the best I have at the moment)

Looking at another catalog, it looks like the mirrors from a 67-69 fit these holes..