Truckandcarshop Window Sweeps--Too long?

[gferris5]

Hey Folks~
As we all know, the good folks at the repro product manufacturers try hard, but sometimes don't bring their A game.


I went to install new window sweeps (this is the felt inner and rubber outer piece that runs horizontally next to your window). After pulling out the old one gently, I went to put in the one from truckandcarshop, and it is about a quarter inch too long.

Am I supposed to force this thing, or Can I safely trim these things to fit? Has anyone else had this problem? I could see where trimming would cause a problem in terms of holding them in place. At the same time, they are definitely not the same size as the original ones.