Wheel Flange or Sling Cap

[Grant Bowker]

I don't have proof, but it seems unlikely that there is a single point that all "late" features were introduced and all "early" features discontinued. There may have been a target date but I suspect that if there were"old" parts in the supply chain, they were used on production (as long as they were compatible) rather than being either scrapped or sent back into the supply system as spares.

I know that post-war maintenance and rebuilds (whether in service or after release) can complicate things but in my opinion there just seem to be too many trucks with early features like civilian instrument clusters and late (1944 and 1945) build dates (and no visible evidence of parts having been exchanged) to be easily explained.