took the plunge and put a deposit on this diff and brake set up, mk2 corona diff, TRD 2way LSD, custom welded traction brackets, twin skyline caliper setup with speed flow Teflon brake lines, and also a tail shaft to suit..
it's about $1000 over my budget for building the t series diff up, but I know I won't break this setup anytime soon, and it comes with the big brakes as a bonus..