Well Carl, absolutely is good enough for me, LOL.
I've currently got the front clip off the 3100 and went out and did some measurements yesterday and was surprised how close they came out.
OP, disregard my statement on the fenders, I was wron,,, err ahh mistaken. (which ain't the 1st time)....

Dave

1949 Chevy 1/2-Ton 3100
1949 GMC 1/2-ton 100
In the Stovebolt Gallery
More pix on Photobucket
Video of the 216 running
Video of a Winter Cruise