problem with aftermarket door seals (new)

[texunter]

I ordered a new set of door seals from 5.0 resto supply and now the doors are a b#%ch to close. you damn near have to slam them. not just that, they leak!! the car needs a new set of door pins and bushings so ill change those and hopefully it will be the difference. doesn't make sense to me. the old ones didn't leak and I'm sure they didn't leak when they were new. unfortunately, I bought the seals over a year ago and have just now opened them so I'm stuck with them! ( any of you had this problem? any advice? thanks, Ted