D you are right about weight. Yeah the BW is a heavy bugger for the datsun, and sure there are plenty of other options, but it all comes down to cost i spose. The winters units require you to sell a kidney, and alfa stuff is (i am under the impressions from an alfa mate) hard to track down cheaply, but I could be wrong on that front.

I considered the H150/H190, but they didnt come in an LSD option commonly, and after some ringing around in Perth I didnt find any that were usable. It sems that the only H190s I could find were from the 720 and they didnt look flash. the BW despite its weight wins on all the other fronts in my opinion.

All up my BW cost me $300 for the diff, $750 to modify to suit, and $350 for a rebuild. so $1400 for a new LSD 3.9 ratio cut to suit and unkillable, if a little heavy.