That's what I'm thinking .... they had a Tech drive my truck home overnight after drying the bellhousing again (guess they didn't believe me). This morning, he brings the truck back and there's the leak, plain as day. But, the service advisor continues to claim it's "residue" and won't do any further diagnosis or repairs. I was told to "drive it and see if it goes away".

Oh well ... didn't mean to highjack the OP's thread.