Maybe your fear is the same that I had last week: I saw the window failed to raise as high as I thought it should. Turns out all was fine once I put in the upper channel and trim.

When you say it is too low, is this before everything is put back together or after?

One possibility that comes to mind (and I haven't thought it through entirely) is to get a roller repair kit and drill new holes in the regulator arms outboard of the existing holes. I think this would extend the window a little higher.

You shouldn't have to repair a new part. I'm preparing a box of non-functional junk I was sold to send back to the vendor. THEY can take out the trash.

I know your frustration.

Bill