Update and more help. I removed the window regulator, broke the little white plastic "rivet" in the process. Is that a part still avail?
#2: with regulator out of the car, I cleaned, re greased etc... The spring was a little rusty, which I cleaned. I am still concerned that it is too hard to roll the window down. And so very easy to roll it up.
Made me wonder, is it possible that the wound spring is too tight? If I were to updo the spring, let it go 1 rotation backwards, that would give me less tension on the roll down, and also make it a little slower to roll back up?
Here is the pic of the window reg in the all the way up position. You can see that all the way up means least amount of tension, and the spring is still tight to one side? Is that right?
Currently, when it was off the car and I tried to roll the crank down it was firm, but then it would spin back up if i let go of the crank.