I want to get rear wheel disc brakes for my B210 120Y, does anyone know which Nissan vehicle with rear wheel disc brakes can work or from any other make vehicle?

does yours have the h145 differential?

im guessing it does as i think only some of the aussie 120ys got borg warner diffs

if so you can use the rear "disc over drum" (disc for footbrake, drum for handbrake) from a bluebird which is the 910 model i believe, only some 910s have this setup the other just have plain drums, it is a reasnobly straight forward conversion with everything bolting up, only difficult bit is changing over the backing plates on the axles as this requires a press

I think that the 910 brakes that you refer to are also an "Aussie only" thing. These were made for local production cars as far as i can tell.
Does anyone know for sure?

I believe that these brakes can be used on the H165 rear axle assembly that was used under the B120, [1200 UTE]. I also think that the other models, including the B210 [120Y] with the H145 diferential used a smaller bolt pattern where the brake plate fixes to the axle housing, & if this is true, then the Girlock rear discs will not fit this housing.

Again, can anyone confirm?