I’m trying to identify the transmission model in an early production 1977 - 123 - 300D? The transmission has no vacuum lines running to it only electrical wiring (driver side) and a mechanical connection (passenger side). The car has been owned since new, so it’s the original transmission.
VIN# 123 130 12 019871
Eng# 617 912 12 006662
Trans# 123 270 0701 006832