57 Chevy Fenders

[19Hoosierdaddies68]

Okay, so my dad is restoring a 57 GMC cab big window with a 57 chevy front end. The truck is in the body shop and the body guy is trying to find (2) clean front fenders to fix and paint as the pair that was on the truck had two inches of bondo in each. The question I have is are the fenders from 57 chevy and 57 GMC the same? Mostly do they have the same body lines to the cab? The body guy is saying he has to find 57 GMC fenders to match up to the cab?? This of course is proving difficult. This doesn't seem right to me but I could easily be wrong so I am hoping some experts or experience will chime in here? I believe the GMc fenders are different in the front for the mounting of the larger GMC front grill, I wouldnt think this would matter as we are installing a chevy front grill. Any help or suggestions are greatly appreciated as my dad wants his body work completed soon and these front fenders are holding up progress.