general question

couple of things:
1 I'm looking for a new rear axle from a 4 runner or a Tacoma with the Elocker opt. I don't need the third member or the shafts, I just need the case... I'm in atlanta, does anybody know of a junk yard near by? I've heard of one in north GA, TN state line but I've never been able to find it.
2 what's been done to the supercharger that TRD offers? last time I've check it out I read that may people were having lean condition/ping on highway driving.. have they addressed this? is anybody running the new set up?
thanks guys and gals...