Twins
Interesting finds, Bob
When I first saw the orange Ford I thought you may have discovered a long-lost ex-Ringwood Timber yard crane, but on closer inspection it looks like they're separate trucks, although clearly to the same design.
The one from Ringwood I photographed around 1972. It started life as a No9 gun tractor, and I suspect the one you have found would have been either a No8 or 9 as well.
You can see the rear and roof of the cab has been fabricated on both trucks.
Looks like a spot the difference doesn't it? There are many detail differences, the most significant of which is the Ringwood one has the lifting flanges on the hubs.
Here's a composite of both:
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