does anyone know this make of tractor

think i took a piccy of it, but that phone had a little accident,
this 1 is an early upton, i mite be going back there,

owner has retrofitted a mack diff 2 it, after tank gearbox developed a problem

? are the grant planatery steer ????? was having a little look at the diff centre as gearbox had been removed and noticed it looked like a 2speed diff

AEC V8 in articulated tractor - that would be the one that is now in Inverell NSW. He bought a couple of V8's to go with it as spares.