Took it to the local aamco. Pretty sure it’s just the converter but like 85yota said. I’ve been through the oh I think this is the problem and wasted money fixing stuff that wasn’t broken. And a transmission might as well be the female mind to me.
I honestly would take it to a couple transmission shops and act like you never took it to anyone before just to get opinions from a few places. If all 3 say it's the same thing then that's what I would go with. If they all 3 say different things, go to another couple to get more opinions.