I bought Dorman 45348, but clearly it's the wrong part and now way will it work. I'm going to try to reassemble what I can and use a piece of wood to hold the window up until I can get the right part.
This is definitely not the right part!!!!
I do not see how this clip can help at all, It does not fit into the track. It does not look like anything that is in there now.
I guess Dorman strikes again!