Rob,
I'd love to assist, but I no longer have a regulator. Actually have never had one.
The Bosch RE55 regulator was sent to the USA to Hotrodelectric when he made a loom for a New Zealand owner who needed help.
My alternator is of the internally regulated type, but with a traditonal look. I did this a couple of years ago. Think 60s Chev with a twist of Motorola/Prestolite. A friend in the USA started me off, he owns a milling machine and I don't.
There are two ( slightly ) different brackets used on the Ds with alternators and another from the earlier generator type, however the fixing method and shapes are simila and interchangable.
OK so let's ask Corne.
Corne are you there?...... (shouting)
Please get a multimeter, set to ohms on x 1k or 2k range.
Put one probe on the R (yes, I made a slip in the earlier post) terminal and other the case earth of the disconnected regulator.
Tell me the reading.
After you do that I will post a drawing of how to use a conventional 2 wire universal regulator and a separate relay to replace the DS regulator and maintain full functionality.
The relay coil resistance is probably not at all critical, but from experience, I like to collect data before proposing a fix or mod.
EDIT: I have added images of possible substitute alternators if you want to go that path.
Richo cast your trained eye over them and pass comment.
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