What a great job . Thanks for sharing the detail with us . This does help with my motivation to continue with my '37 build.
Your lovely truck definitely has a '40 front clip , the details are ; the top grill bar (chevrolet script) is deeper than '39 and goes right back to the edge of the nose cowl. The nose cowl is different also to allow for the top bar restyle . Then the grill has one less horizontal bar than '39 . The short headlights with sealed beams (first year for those). Park lights on the guards.
Here in NZ the '39 has round gauges , the '40 has the strip style , but that may just be a colonial thing .
The '46 is a gem and will look SO good out on the road .
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