I have a 2014 North Trail 22RBK and the corner shower's door has a silicone seal that slides in and out of the track. The seal is torn and I can't figure out how to take the seal out to replace it. I suspect the door has to come off and the lower hinge has to be removed as it covers the slide opening. Just wondering if anyone else has replaced a bottom shower door seal from the aluminum frame on a shower door? Any help is appreciated as it seems a waste to have to tow the trailer a long distance to a dealer to fix a non warranty item that should be easy to fix.