Removing an upper ball joint

heat them up a LITTLE bit and them spray something like wd40 on them and let it soak a few minutes. heating them a little expands the metal and lets the penetrating oil in. like turbodart says, leave the arms in the car and the sockets should come out. i needed a 3 foot cheater bar for mine. make sure to clean the insides real good and put never seize on the new sockets when you screw them in.