Gerry,

I went through the same exercise a while back good luck as time makes many holes! Look at the link below. My image is from a 2/41 military which was transitional between true military specifications and civilian so most of the holes are the same for civilian models. The voltage regulator is different, and perhaps the main wiring harness hole on your 42 is located lower on the firewall (on GI's the harness location changed somewhere late 1942). Hope this helps.

Paul



http://g503.com/forums/viewtopic.php?f=25&t=215388


1941 Chevy 1 1/2-ton WW2 4x4 dump truck
In the Stovebolt Gallery
Lots more pictures