u/REconsultanty

I’m currently working on my 1983 280 CE. The car has been swapped with a W124 automatic transmission.

The stock W123 relies on a mechanical speedometer cable, but the W124 transmission uses an electronic speed sensor setup.

For those who have done this swap or a similar OM606/722.6 type of upgrade, what is the best route to get my factory speedometer working again?