Leaks in two spots

[Morbid]

Some time ago a mechanic replaced my speedo cable w/a aftermarket one. Ever since then fluid leaks from where the cable goes into the transmission. Is there a gasket or O-ring that goes in there?

Second leak is in the rear of the Transmission where the prop shaft goes in. Again is there a seal I can replace there?

Thanx

Greg

 

[SSedan64]

Yes, there're seals/O-ring in both areas. #078, #369 & #074.
Info >> https://www.wittrans.com/Schematic.aspx?Transmission=200-4R&Schematic=4

Grab the Driveshaft, push up/down to make sure the Trans Bushing in rear housing isn't worn, this supports the Slip Yoke.