How to remove a cab 13?

[DaveBuckle]

Thanks again Grant.
You are enlightening me already - I am not as familiar with the Chevs as am the Fords.
Tell me about the footwell vents: what the different shapes indicate?
And the compliance plate: how you tell what year?
You also referred to them being in wrong/different location sometimes - what am I looking for there and where do I find any other numbers stamped on vehicle?
I will take more photos when I head back in a week's time.
Thanks so much.

[Keith Webb]

Holden built the entire cab unit here in Australia which is why the cowl vent is a rectangle - the dies used for it are the same as on other Holden vehicles of the era, as are the little catches on the windscreens - you'll see those on quarter vent windows on other vehicles - even the FJ Holden. So there are many detail differences - here are a few: The floor is flat rather than a patterned plate, the windscreen frames are slightly curved in profile, the door stamping has no circular centre piece. The hatch although similar is different as well.
Canadian Chev cabs have the same cowl vent shape as the Ford and the doors are also the same.

[Grant Bowker]

Thank you Keith, I was hoping someone with first hand knowledge would take up the thread rather than me continuing with "It is my understanding that.... but it needs to be confirmed.".