If I made them the size of the Autometer it is possible to get the bracket in there and with a ratcheting wrench tighten it for smaller gauges.
But 99% of the current offereings mainly from autometer are made to fit one size. Trying to make sure it will work with more than just one manufacturer.
Chris Lucas
73-87chevytrucks.com
captkaoscustoms.com
squarebody.biz