904 loud whining in gear. Help!

Oh Idk..
Just thinking about what it could be.
I had my line pressure as high as 185 lbs
And it didn't make noise like that.
I had to keep lowering it down
1 turn at a time to get the shifts less harsh.
That's the only reason I knew the amount of adjustment.
Mine is at 145 now
It took 4 turns to get it there.
I'm sure more knowledgeable transmission people can help.