stub axle, hub and rotor are different, shock is held in via a nut at the bottom of the tube - similar to the 2.8i (not a threaded cap as ours) - diameter of the tube is the same. A bit of negative camber...
the tube (only) on the one pictured (a 1973 3.0 Gt) is the same as aust delivered - threaded cap to hold the shock. Same as all UK delivered 3.0's