The spedometer installation problem was related to a deformed flange behind the dash in the area but below where the choke cable was originally. The flange was pushing the unit to the left but I could not see that when trying to install because it was behind the dash and covered by the bezel for the speedometer case. Once in place the installation of the mounting nuts was another challenge (kinda crowded behind the dash).
I still need to clean up the wiring in the dash area but the Dakota Digital intruments and the related control module are installed.
