Need measurement for clutch rod hole in firewall ‘67 C10

[weim55]

I just dropped a 67 GMC cab onto my 67C 10 chassis and found the first difference: The 67 GMC had a V6 NP435 4 speed and it appears the hole in the firewall for the clutch rod is in a different location than the Chevy. The second picture posted is of a 71 Chevy cab which I think is a little bit different than the 67 Chevy. Would one of you guys be able to get a measurement of the hole placement on a 67 Chevy cab?

Steve weim55 Colorado
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