904 and 727 question

OK up through 69? the reverse lamp switch was on the column or on the shifter with a console.

The single post you removed is the neutral safety

Scare up a connector for the three pin and do one of two things:

1--Wire the center pin of the newer 3 pin switch to your old wire which is neutral safety, and leave the reverse lamps as they are.

2--Wire the center as above, and wire the two OUTER pins up to your reverse lamp switch wires. You can refer to a wiring diagram. The stick cars all had the reverse lamp on the trans, so you can refer to the bulkhead connector pins to use in order to feed it through