Yep, she's an old Ford Blitz. Not much left of her. They were the main trucks used by the Allies in WW2. Made in Canada [by Ford and GM] for the Commonwealth forces. Blitz is the Oz name. Also called CMP's [Can Military Pattern]. Another nickname is "Monkeyface."
Oh, and Chev Blitzes had Chev 6s in them.
Manuel in Oz