I was talking about the bottom Jaw, its not on any of the pintles, thus the Pintle will always spin round.
Is this a problem

, no idea, I suppose it depends if you want your pintle to spin all the time, personally I think its stupid, and a jaw should be fitted all the time. And more so the Pintle locked when not towing.
However D, thanks for the info, I did not know the ADF Perenties came without a lower Jaw, every other army in the world Pintles have the Jaws, maybe a cost cutting thing here.