bbfr,
Check your engine serial number.
1933 goes from 3367317 - 3964077
1934 goes from 3964078 - 4708994
Engine casting numbers are the same 837231, but the part numbers are different.
1933 is 364314
1934 is 600372
Check your title to comfirm it has the same serial number on it, you could have the wrong title. Your title could have the engine serial number on it...this was a standard practice in many states before the mid-1950's. If all of this checks out, I'm lost as to why it's titled a 1933...could have been a typo somewhere along the way, who knows???
Your truck could have been born a single wheel truck and the dealer or one of it's owners along the way added the outer wheels to give the truck a higher GVW.
Mike B
Edited to correct casting number mistake 2-10-12
