Welcome to the Stovebolt Page Bluepen.
I once saw some window latches that were removed from the window frame of a 46. They looked OEM but I've never seen them again.
Chevrolet didn't print a separate parts or service manual for civilian trucks to my knowledge 41-46. The Chevrolet shop manuals and master parts catalog include both cars and trucks 41-46.
GMC however, did print separate service and parts manuals for their trucks.
