Otto,
I have the circle part towards the door. When you say 1 1/2" part, does that mean the the round part measures 1 1/2 " ? Mine only measures about 1/2". I will try to get better pics tonight. But I am seeing the same gap as the pic posted by Dave (dgrinnan).
I even tried to pull the round part around the edge of the track and it still doesn't reach the door. My windlace does not wrap outward as Kevin mentioned. If I hold my windlace it is pretty flat. I will post more pics tonight.
Ron