An old thread but alot of good info here. I have a couple of questions:

1: My seal is not preglued at the joint, I have to cut to length and then glue it. Is it better to cut to length and glue the joint first, or should I cut and glue the joint after I get it glued to the adapter?

2: is the seal glued to both the top and bottom of the adapter ring? Or just one or the other?

3: where can you get the air door seal? I didn't know there was suppose to be one and don't remember seeing one for sale.