There are 2 AB160 teaspoon tippers behind the tent, 1 has the bonnet half off, or maybe the hinges are seized which was a problem with International trucks of that era.
The D8 dozers are interesting, in the 1980's I sand blasted and painted 2 of them Cat yellow for a customer.We also took the tiny canopies off them and fitted full length scrub canopies. I rebuilt a final drive on one of them, and the rear housing and the fender were both badly scarred with shrapnel damage, at that stage I didn't know they had served in Vietnam and I wondered how it got like that. It is possible that it is the same tractor shown in 17 construction squadron photos having the same final drive rebuilt in Vietnam.
Another interesting thing is that the Australian Army power shift D8's were made in Great Britian and not in the United States ,all the civilian power shift D8s that age I have worked on were made in the U.S.
Great photo thanks for sharing.
Cheers Ken