In response to recent postings I had a lot of difficulty with window rubber, especially the one down the "A" post and around the front of the door. I tried two usual sources and both supplied a rubber where the legs of the "U" profile were of significantly different length. On a recommendation I purchased from Bassett http://www.bassettjag.com/ and found it to be of better quality and a perfect fit. I don't know about the other rubbers but if you are having difficulty on the front one, I can recommend this source. BTW, after installing the complete set, it was several months before the door closing eased up after the rubber took a bit of a set.
George