There is an old Datsuns car set that fit right in the openings, I don't remember what year they were, but 25 years ago they were getting hard to find used. Look here at Speed Hut ,
https://speedhut.com/gauge-accessor...edometer-tach-temp-fuel-volts-oil-clock/ I don't know right off hand what the stock gauge diameters are, but SpeedHut may have something that will fit if you look around. I use their Air/Fuel ratio gauge, it high quality and customer service is excellent. .
I used the search here on the Stovebolt site, the above Datsun 240Z gauges are the correct ones, the factory chrome rings should fit also.
