Canadian Centurion tanks question

[jdmcm]

Bit off topic,and perhaps Hanno will move this to a more appropriate place, but I was wondering about the Anzac tankers crewing the Centurions in Vietnam, did they wear a mix of Australian and US gear? I have seen the APC crews wearing what look like US pattern armored vehicle crew helmets with radio mikes, but not sure if I have ever seen the Centurion crews wear those, perhaps someone could advise as to radio configurations and the like on the RAAC tanks. Were the uniforms, flak jackets and web gear a mix of the US and Australian or was that just the inevitable trading back and forth between the troops?