a nissan sports option book for the b210 said for a lsd for the h150 diff to modify h165 parts.now i don't know how much modification is needed,but the h165 centre won't fit into the h150 housing(curses).you could get the complete rearend from a datsun a10,which was sold as the 1600 in america.note,this isn't the p510,but a solid axle car from about 1980.this diff is a straight bolt in,& is a h165.the 280zx
discs look to be the ones.if you can find them, & i seem to remember the 280zx selling very well in america.get the front discs & calipers,too.