1.S series ae86 diff, drum to drum, all brake lines, both handbrake cables, even the rear half of the tailshaft, welded centre by me.
$100 (bearings all replaced recently too)
2.disc brake rear setup from a gt corona import (rare) mounts will bolt to S/T series, comes with:
2xmounting brackets
2xcalipers
2xdiscs
3x pads (missing one sorry)
4x brake shoes
this setup is really good because of the drum style hand brake inside the rotor (like commodore) aswell as the disc with decent size caliper.
$170 ono
located in hawkesbury NSW but can organise freight. your expense.