[David_Hayward (RIP)]

These are also [and probably also] similar S/M 2033 trucks (lorries):

GENERAL MOTORS OF CANADA
MADE IN GM CANADA
OSHAWA WALKERVILLE REGINA
MODEL 84-43X2
SERIAL.1844318023
ENGINE 3726053 BODY SERIAL
TRIM XR PAINT F.C. 102


GENERAL MOTORS OF CANADA
MADE IN GM CANADA
OSHAWA WALKERVILLE REGINA
MODEL 84-43X2
SERIAL.1844323527
ENGINE 3731861 BODY SERIAL
TRIM XR PAINT F.C. 102

GENERAL MOTORS OF CANADA
MADE IN GM CANADA
OSHAWA WALKERVILLE REGINA
MODEL 84-43X2
SERIAL.1844327372
ENGINE 3737619 BODY SERIAL
TRIM XR PAINT F.C. 102


GENERAL MOTORS OF CANADA
MADE IN GM CANADA
OSHAWA WALKERVILLE REGINA
MODEL: 84-43X2
SERIAL NO: 1844325764 SM2033
ENGINE NO: 3754252
TRIM: XR
PAINT: F.C.102


I think that they used the US system of dates at the time. as against the commonly-used British system though I have to say here that even now the date layout varies in this country! So I think the date was September 5th 1941 as against 9th May. However, if the original engine is in there still, the block casting date code will perhaps confirm which it was: The McKinnon Industries foundry used the same system that Flint Grey Foundry used, namely Month-Date-Year. That is in both cases A to L for the Month for Jan to Dec, then 1 to 31 and 0, 1, 2, etc.

A quick check of my database revealed that Engine number R3747383 had a July 14th 1941 casting date so I think that the September 5th '41 date is correct. Windsor Transmission Plant had stockpiles of engines so they got shipped off to Oshawa in no particular numerical order. However, the evidence seems to suggest that I am correct.