Sorry no pics, the panel is in So Cal but I am going down there at the end of the week and will take some shots then. Your pictures seem to show they never had one in the panel. Maybe the PO jerry-rigged a suburban one up there...I will check for mounting holes to see if original or not.
Thanks so much for your help...I really appreciate you taking the time.
jon
PS: I got a shot of my parts trucks, 65' and 66' GMC's, the blue one has what looks like a bardon bumper but you wouldn't want it as the rust is what I think is holding it together...The yellow one has a 351E V6 big block. I drove it to its location but am not sure what to do with the engine at this point...the blue one has a 230 and I am driving it "as is" for now until something breaks down.