Ford: 1996 Bronco, silicone spray, rear window

Question
Need to replace rear window rubber upper run , ordered new one .What is the best way to remove and replace . Does it need to be glued. Thank you in advance .

Answer
sorry it took  so long to answer i couldn't log in for 3 days.window runs there hardly ever glued in .you should be able to just pull it out and then spray the back of the new one with silicone spray and it should just lock back in. unless it is the  body gasket or run then ford glued them in