Which trans and what is the trouble?

Sometimes your insistance that it be fixed and refusal to take the malfunction as "normal" will sway them towards another full swap.

My replacement had a flare in it--"normal" for the 5R55E it seems, but I "fixed" that with some snake oil.

I also noticed they installed an in-line filter in the cooler lines. Hhhhmm, what do they fear about the new trans and their R&R job....