I vote with Spanky. Per the "Master Parts Catalog" for Chevrolet Genuine Parts 1929-1950 Effective April 1, 1950, car model serial identification page 5, Year 1942, clearly in print has the prefix "BK" as follows: 115" Wheelbase, Commercial 1/2 Ton Truck. In addition, per the 1942 Chevrolet Truck Operator’s Manual Page 3 it states the following: Light delivery and Medium Series “BK” 115”. Page 5 states the following: Identification Numbers. The serial number, on all conventional models, is stamped on a plate which is attached to the right side of the cowl and is visible when the bonnet is lifted. No doubt the ID tag is a 1942.
As for the rest of the truck, well, cant say without further ado. However if the cab has any original glass, it could have a date code of 1941, as production of 42 was released in June of 41, or glass dated 42 if produced later in 42. Many ways to dig, radiator has a date code engine side, casting on engine block, casting on transmission, intake, etc.
As for if it is a 1945, (1946 1st design) I vote no. I have noticed that after/mid 42, the “trucks” were produced with plastic covered steel shank interior window cranks and interior door handles. When I came across them used in truck (It Ran When it was Parked) they have all been weathered and cracked. The interior door lock “T“, drivers side is also rose tan plastic. The exterior door handles are made of a lighter metal, are painted, not chrome and also shaped in a more of a crescent figure. Appear to not be cast, but wrapped with stamped grooves for grip. Same for handles & knobs for the GMC’s in the “CC” Models that I have had the pleasure of.
James, good luck on your rod/restoration. My take is to title as a 1942, this was a great year, low production (Dec 7, 1941) (rare, very rare) raising value and pride!
