My son reported to me that the transmission fluid I his 84 GL had started to
look different.  I examined it and determined that the gear oil from the
differential had contaminated the fluid.  I removed the transmission and
disassembled the differential. The pinion bearing between the transmission
and differential had failed. This had damaged the deals.  I replaced the
pinion bearings and seals as well as the governor oil seal (as per Bentley).
Now the transmission is pumping fluid into the differential and out of the
vent on the differential, not the vent for the transmission.  I am at a loss.
 Any suggestions?

Rico Dagastino
Munford, TN