[dagnabbitt]

Originally Posted by TKCR

This may help.
http://www.73-87.com/7387garage/inte...ry_buckets.htm

Thanks, that's a great article, I am surprised I have not read it before.

So it would appear that what I have a picture of was a Suburban mount (as v30crewcab points out). I suppose it could probably be made to work for my 73-77 buckets, but if anyone has experience with that please let me know.