I've got the 2wd 4pots on my series 1.

You have to machine 4mm off the inside face of the caliper and put a 90 deg union or banjo union connector on them to miss the drive shaft.

I've tarox 2wd discs and pads and they're unreal! Can just about get back end in the air

Be warned: these DO NOT fit behind the standard wheels because the calipers are just too big.