Haha Greg, we borrowed that 'Cement Aerator' we saw at Kennards last weekend, but it's alright we cleaned it thoroughly :S
But anyway, with the gearboxes. Is it possible we have the info around the wrong way? I have a box that we definitely got out of a 280zx and the filler plug is on the right hand side (drivers side). Steve has a box he was told has a 260z box and it on the left hand side. I know it's possible that any of these boxes could have been swapped at any time, but where are we getting this filler plug info from? I have seen it mentioned a few times on this site but maybe we are just copying what someone else has posted? Just a thought...
In regards to the whine the gearbox makes, went for a quick drive in it today and it's not that bad. Not trying to say that there isn't a whine, just saying that it is bearable. But anyway I don't think anyone of this really matters for a $200 gearbox haha. Good luck with the sale