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I drove Mrs mudsane to work and dropped into Tyrepower. I got to speak with the manager today, so I picked up a Century N70ZZ 720CCA RC160 for $160 dollars. Australian made and local, so I gotta be happy with that. I know you might be able to get cheaper, but I would have to pay freight and if it stuffed up under warranty, I couldn't get a replacement.
I couldn't find a Bonds outlet around here either, Bob, but thanks for the recommendation.
I have found the reason that the battery died: The regulator in the alternator is drawing 2.41 amps.
I pulled all of the fuses, which took out .12 amps (Clock, stereo and leakage).
When I pulled the Black fusible link, which goes to the large white wire that supplies the L and S terminals, the current disappeared.
I got onto Patrolapart, typed in my Old Trol's details and the alternator they have is different, but it states that it will suit an RB30. The battery terminal is in the wrong place. So is the regulator socket, which is also the wrong shape.
I have stripped the alternator and unsolderered the diode plates. I have tested everything and all is good except the regulator has an internal fault and one of the sub diodes has a slightly lower reverse resistance than the other two. (I am surprised by the minimal amount of wear on the slip rings and brushes so it must be a replacement alternator).
Repco has given me a price of $280.
A local auto elec quoted $400 to $500
The local wrecker and Autopro haven't got back to me yet.
I have ordered an alternator from Autopro as the one from Repco was only a reco.
I can also get a regulator complete with brushes and Diode plates for $140 from another auto elec, which I might get in the future to have a spare alternator.