For those of you who would like to see the differences. The soild mount is for the 70-72 and the two piece mounts are for the 73-76 sideshift.

And it is much easier to get the passenger side mount on the later car installed if you remove the oil filter first, or have small hands like me

Cool! I can add a good pic later with more angles + installed...I've been re-sizing my pics to start a new side-shift conversion thread and it is taking a while. I was surprised there was so much "float" of the late mount lower bolt inside the mount bar hole. I called my local NorCal guru and he confirmed that this is just how it is.

pic

Side by side details.....