[MARKDTN]

Do you know what year it is? The pre-'87 700R4 are prone to issues and have a 27 spline input shaft. '87 and later have a 30 spline input. It is important that the TV cable be adjusted correctly when first installed. It controls pressure internally and can fail a transmission in a blink of an eye. If you have 8 qts of fluid in with an undrained converter and not getting fluid out of either line to the cooler, sounds like a pump issue. But that may only be the tip of the iceberg.

I am a pretty heavy mechanical guy. I have built many engines, not afraid to dig into lots of mechanical things-but automatic transmissions scare me. I would pull it and let a good transmission guy do the repairs-but that's me. A guy that knows his way around these may save you a lot of taking it out and putting it back in or even a failure because some tiny shim or clearance is critical.

Good luck with it.