> RE: Fluid Levels in AT and Final Drive
> Or it could be that the PO simply overfilled the tranny and never had
> any service on the final drive, that simple.

I think you're probably right on the money there. PO couldn't get into
reverse and in desperation tried adding a bunch more ATF. As for the
final drive unit, he probably didn't even know it had its own
lubrication system.
As for the issue with no reverse, it sounds like it's probably rebuild
time. Either the reverse clutches aren't grabbing or the valve seals
that operate them are leaking and not holding enough pressure. Nothing
to lose by changing the ATF and filter, though. Might just be a little
sticky something in there.