Thanks George,
The compliance plate shows a weight of 11,300 so I reckon it may be equivalent to the American 1 1/2 tonne.
Wombat it doesn't have the maple leaf emblem just a chevrolet badge that is sort of a sideways t shape.
The chassis number is not legible but it says 32C3 or it could be 32G1 either the 1 has been overstamped with a 3 or vice-versa.
The roof of the cab has three ribs on it.