Well, this is turning into the can of worms. Sorry for the confusion. This is for a 1940 Chevy with a 1960 235. I came across a NOS GMC cluster gauge. The size/shape is same as Chevy. No problem. Simple, easy swap. I actually like the color of the GMC vs Chevy so used the GMC decals a couple years back when I rebuilt the truck. This all started when my speedo failed. I rebuilt it myself but kept have issues so I just swapped the speedo. That required another cable, which I had. This is on another thread here. The calibration was off because the Chevy has 0-100mph and GMC is 0-80. Soooo, I'm now using the GMC housing & speedo with '40 capillary tube temperature gauge. AMP gauge is a modified aftermarket voltmeter gauge as described on this site. One more change will be to use the GMC oil pressure gauge since it is 0-80 instead of Chevy 0-30. Fuel gauge is Chevy.
I thank you all for your insight on this. Let's call this one handled.
Thanks,
Dennis
