In your PM, you indicated this is the correct plate for your truck.

Your codes on your title(s) (for two trucks/vehicles?) are:

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4AK219481 = 1941 light delivery truck

4 = plant code, no #4 plant indicated (page 10 for plant codes)
http://www.1954advance-design.com/chev-specs/1941-candt-ser.pdf

AK = 1941 (top of page 4 for AK truck code)
http://www.1954advance-design.com/chev-specs/1941-candt-ser.pdf
vehicle weights in 1941
truck gross allowable weights in 1941

It seems to me that the gross allowable weight is the weight that should be on the vehicle ID plate?

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DBA568133 = 1946 Engine Serial Number 3100 series truck (4400-4600 lbs, depending on wheels)
http://chevy.oldcarmanualproject.com/chevyresto/4649.htm
http://chevy.oldcarmanualproject.com/chevyresto/4691.htm
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On what documents are you finding these codes?
Can you post photos of the codes/documents?

I might be making mistakes, above. Would someone please correct or confirm the codes' meanings?

Tim
1954Advance-Design.com
1954 3106 Carryall Suburban
1954 3104 5-window pickup w/Hydra-Matic
The 216 and early 235 engines are not "splash oilers" -- this is a splash oiler.