That's awesome! I'm wanting to improve the accuracy/performance of my gauges and put in a tach at the same time, but not get away from the original look. Being 3 3/8 I can use the autometer designer black series gauges with the electronic speedo/tach combination in the center. That will work out great for me. I'll upload pics when I get it built.
I modified a 65 GT bezel, which is pictured in the CJ pony link. 66 bezels look a bit different. I didnt use the support, but I have one if anyone wants one cheaper than list.
I chose to modify the bezel so that I could drop the gauges in through the front. It's not an easy mod or for the faint of heart. :grin:
I did the same thing with mine. Drill out the holes and drop in the 2" and 3 3/8" gauges from the front. I tried it with the gauge support. The fit was horrible and the gauges did not line up. For $40 I expected more. Plus you can't see all of the gauge because the bezel hole is too small.
Here is how it turned out. All you will need is a decent 2" hole saw. A drill press helps too...
If I had to do it again I would use the traditional chrome bezel. It would look more factory. Oh yeah, you have to fab up a mount for your turn signal and Hi Beam lights. I just used a piece of aluminum bent into a box shape.
As a new member I seem to be coming into some of these threads late.
But If you are looking for gauges for your early mustangs. I used the JME package.
It comes with Autometer Phantom gauges and wires directly into your factory harness. Check it out! http://www.sdweb.com/jba/Guages.jpg