Stock Gauge replacement for 72

[Toms Truckin]

I searched the forums before asking, but I cant seem to find anything that will tell me the diameter of the gauges I would use for a stock replacement for my 72.

I have ordered a nice replacement chrome 7 guage bezel, and I would like to use all of them, adding a tach, and a temp for my trany. I pumped $9000 into the guts of the truck so far, and I dont want to rely on idiot lights.

I was hoping to go for some nice Stewart Warner Power Series gauges. And all the links from their site, end up telling me that I need to know the diameter of the gauges I need, in order to find out pricing/availability, so on...

If anyone can help I sure would appriciate it.

Here's what I plan on having. Instead of the speedo, and gas guage being the only two larger gauges in the stock location, I'd like to have the speedo, and the tach, with the fuel gauge in the center of the two upper locations (all I know is its smaller)

Then the temp, oil, volt, and trany temp would fill in the bottom 4.

Thanks again for any imput.