Not sure if you want to replace the electrical gauge with a mechanical or just add a mechanical and keep the electic. But either way the answer is ‘yes’.
Not what I did & not my photo but I saved this from someone here when I was deciding what to do:
In the end I replaced the dash gauge with a mechanical from a TR6 using braided tubing and adapters available from MiniMania &/or Seven Enterprises. Details available if that is more the direction you’re going.
