Did you ever figure this out? I replaced mine with the parts in this write-up (back in October) and it's leaking pretty severely where the 2 parts connect. I'm not sure which part is bad or if I just need an o-ring.Thanks for all of the discussion. I replaced the outlet and the over flow hose to recovery tank. Still the
O-ring seeps when the engine heats up. What can I do short of trying new parts again? I used AC delco parts. Very frustrted!