39 truck front sheet metal alignment??

[ActionYobbo]

I had trouble getting the hood to fit evenly. At the can end the is no gap on the right and over 1/2” on the left. If I get that gap even at 3/16” across then the front center of the hood is 7/8” off center and the hood won’t close. So I have been measuring everything and have found 1/2” and 3/4” differences in the front fenders and grill panels. So I am trying to find a balance where the panels will fit and the hood shuts and the gaps are somewhat even. I assumed the frame was straight. It looked straight and measured out good. I do have a difference of 3/4” from the firewall to the front of the fender with the left being longer. Did they adjust and shim the panels on the assembly line?