Correct Motor mounts for 65 /6 in wagon?

OK I searched the archives but didn't get a clear answer. My existing motor mounts need to be replaced. Here is a pic of the driver side mount.
The replacement mounts I have are Westar 2303 & 2304 (Pass & Driver side).
The Pass. side looks OK, but the driver side sure doesn't look very similar. What's the story? Just a "newer" design or do I have the wrong mounts?
Thanks,
Benjamin

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