Help Cj5 gauge cluster size?

[WyattP]

I have a 59 CJ5 that is new to me. Anyway I have to build a new dash for it and I got all the gauge holes cut except for the speedometer/temp/fuel cluster gauge only because I’m not sure how big it needs to be where it will fit perfectly and what is the best way to cut it?

 

[TSB8C]

The speedo is 5 1/2". The others (oil, volt) are 2 1/16". For the speedo, you'll also need the studs at each corner on the back side of the dash panel for mounting. A laser cutter would be great if you have access to one. You might also check with a local sheet metal shop on paying a small fee to have it cut for you. If not, a circle cutter (hole saw) made for cutting metal using a drill will work, or a small metal cutting blade on a jig saw can be used if you can follow a curved line well enough. I also heard of one guy that used a router with a metal cutting bit and a wooden jig he made for the router to follow.