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Dr Terry wrote:Hi newby.

The wiring is even simpler, if you're using a modern alternator with an built-in regulator. These were fitted to all Holdens HJ & later.

Unwrap the harness between the old reg & gen & follow this.

The only 3 wires that matter are:-

1. The thin brown wire that goes inside to the dash (gen light). Connect this to the spade terminal on the back of the alternator. You may have to extend the wire to reach.

2. The thick red wire at the old reg. Connect this to the bolt-on +ve terminal at the back of the alternator. You may also have extend this one too.

3. The one everybody forgets. Run a new thick black wire from the alternator bracket (or any bolt on the block or the head) directly to the body. Use one of the old regulator mount screw holes.

Dr Terry.

V8EK4us wrote:Changed the Gen and Reg to one wire alternator today. Made the bracket using a Holden red six alternator bracket with a few mods, pics below. The one wire alternator has 2 spade terminals marded #1 and #2, run the gen light wire (brown) to the #1 terminal and a heavy wire to the + (positive) on the battery. Remove the regulator and all old wiring as it is not required anymore !!





The front generator mounting bolt was replaced with a stud and nut.












I used the original Generator adjuster, reshaped it and relocated it to the water pump bolt obove the original one.







Hope this helps someone in the future...