#35695, "Look what I made!!! Custom gauge holder... (pics)"
Now, I don't know if someone makes a prefab one of these, but I made mine from scratch. I cut the circle out of wood. Made sure it fit. Cut a groove out of the middle (for the gauge). Taped the gauge in and bondoed the sides to hold it. Laid fibreglass across it. Let it harden, sanded it. Bondo, sand, bondo, sand, primer. It is not quite done, but close. What do you think?
