TRD/Kazuma was selling the TRD LSD's for about $250, not sure if they are still. Yes its worthwhile, especially for that price. No, you should probably not install it yourself. Its the kind of thing that "If you have to ask..."


'97 4Runner, '06 F350, '86 4Runner, '05 WR450
http://home.4x4wire.com/erik