Been sitting in my garage forever and I doubt I'll actually go through putting them in my XR. Yes JVL once made kits, but he's out of stock and not going to make another run unless there's 30 people ready to pony up for deposits. I have little faith that that will happen.
Rally family special pricing (compared to prices listed locally)
I have 2 mkIII supra diffs:
$225 - 3.9:1 LSD
$100 - 4.3:1 Open
$275 takes both, willing to ship, but would be on your dime (have shipped them before).
My plan was to put the LSD pumpkin on the 4.3 ring gears but plans never materialize. For you toyota axle volvo folks, these centers will fit the V6 (7.5in) truck axles:
http://www.4x4wire.com/toyota/tech/supra_lsd/
http://www.gearinstalls.com/supralsd.htm