The nice thing about this is the center part. It acts as an angled shroud for the gauge to direct your eye inward. It has a nice angle to it AND it tapers.
[IMG]http://i194.photobucket.com/albums/z198/Danimal_9395/TechPost/2008_0601June0014.jpg[/IMG]

Only one thing to do: Bust out the grinder! (OK, guard is off so I can get inside. Not a recommended method. Please were appropriate protective devices.
[IMG]http://i194.photobucket.com/albums/z198/Danimal_9395/TechPost/2008_0601June0013.jpg[/IMG]

After much grinding, which might have been better on a good belt sander I was able to get to the size needed.
[IMG]http://i194.photobucket.com/albums/z198/Danimal_9395/TechPost/2008_0601June0015.jpg[/IMG]

Angle is still there and taper is still there, only much less (actually side view of the part earlier is finished, I forgot a ‘before’ shot.)
After more trial fits and some rust removal, the gauge fits.
[IMG]http://i194.photobucket.com/albums/z198/Danimal_9395/TechPost/2008_0601June0016.jpg[/IMG]

Then the stock ‘chrome’ bezel was put on to check the view. Glass was deleted because the gauges have a curved glass AND they don’t drop down all the way into the angled bezel.
[IMG]http://i194.photobucket.com/albums/z198/Danimal_9395/TechPost/2008_0601June0017.jpg[/IMG]


Just here for the free beer.
1953 1-Ton Dump Truck

1954 Teenage Hot Rod