How to remove radiator

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I am attempting to replace my radiator in my 1998 Oldsmobile Achieva. I've got the fluids out, hoses & tranny lines disconnected, the radiator is loose & ready to go, but I don't know how to get it out of there. The upper cover doesnt seem to budge. Does the fan need to be pulled out first? Thanks. How long have you had this problem? Few days