Tail Shaft Leak - was "Is this gasket available? A904 Extension Housing Snap Ring Cover"

DigitalRelay said

So if that's the case, what would cause this leak?

Click to expand...

Probably either over-filled, or more likely is that the the converter anti-drainback valve quit working, and so, now, when you park the vehicle, the convertor drains back into the trans, raising the fluid level up to the rear seal. Normally, there is very little oil at that rear seal. Normally, with engine running in Neutral, the oil-pan is barely full,