The '66 and '67 columns SHOULD be the same dimensionally, however the '67 has a collapsable collar done for safety reasons. I think the assembly should be able to fit, but never having actually done it myself, you should solicit more opinions. I seem to remember this coming up in the past, so try searching the site.
I knew we had this answered on this tech forum, but I couldn't find it.
The answer was they do NOT interchange. It will not interchange.
They are two different columns, in dimensions, signal switches, mounting brackets and more. 66 was a basic column, 67 was 'safety oriented' and was thicker with collapsable column that will not fit a 66.
I had originally posted this exact question a few months back. Skip was kind enough to respond. His comment was "To make the 67 column fit a 66 would border on butchery". I translated that into keep looking for a 66 column. I eventually found a 66 column, but they definitely cost more than the 67's.
A forum community dedicated to Chevrolet Chevelle owners and enthusiasts. Come join the discussion about restorations, builds, performance, modifications, classifieds, troubleshooting, maintenance, and more!