Bob, I'll give this one a shot.

1. Not sure about the rubber bumpers, they might go inside the door where the window comes to rest in the down position.

2. There is no windlace or anything attached to the doors. The windlace goes around the door frame and there is a rubber seal along the lower part of the door opening.

3. Those pieces of rubber are to prevent the door skin from rattling against the horizontal braces. I covered the entire inside of my doors with sound deadening material so I didn't use them.

Hope this helps
George
(46forme)