Model Year - Serial Number Cross Reference

Disclaimer: Please keep in mind this list is a ballpark reference and not etched in stone. The early serial numbers, up to 1950, came directly from Herman Saas' book, which were based on the "Branham Automobile Reference Book" and "NADA". The later number's came from compiling a list a of serial numbers and years from various trucks and making the year 'breaks' where obvious. It is possible to have an early serial number that was titled much later. Some trucks were made for stock (when orders were slow) and not titled until they were sold.
Review and corrections provided courtesy of Dane B.