Hello Everyone 1984 Mercedes 300D TurboDiesel 389,000 Miles

I have a transmission leak, cleaned underneath the tranny and have
no doubt that it is the Front Tranny Seal of the Transmission, could be the original.

QUESTION:
While the transmission is taken out to replace the Front Tranny Seal,
what else should I replace in that area?

After researching this forum, I think I will replace the Rear Main Engine
Seal ...

Should I replace the Ring Gear (aka Flywheel Ring)? Rear Tranny Seal? Torque Converter and Seals? Anything else related to the Transmission?


WORK DONE IN THAT AREA AND WHEN:
Mileage 385108 12/22/08 until 1/6/09
Engine shocks, Engine shock mounting kits, Rear Transmission Mount, Tranmission Vacuum Modulator Valve, Transmission Filter Kit

Mileage 386327 3/9/09 until 3/23/09
Transmission Output Seal, Transmission Output Flange Nut, Flex Discs, Bearing Dust Cover, Pilot Support Bearing, Drive Shaft Support, Differential Input Flange Nut, Differential Pinion Seal


I look forward to reading the responses!