Thanks Tim
The data link you provided is data out of the service manual which I have. Note the document date of 12/36 which must be prior to the start of 3/4 ton production. Also note the doc refers to 1/2 and 1 1/2 T vehicles (as well as sedans) but nothing on a 3/4 T.
Still trying to understand how mine has a 8924 sequence number if only 3024 vehicles of that model were produced