How do you change the lower ball joints on an '84 Chevy 4x2 pickup?

UNLESS YOU'VE NEVER DONE BALL JOINTS -------DON'T----------- IF YOU DON'T KNOW WHAT YOUR DOING - THE COIL SPRING CAN -KILL YOU- Find somebody that has, there is MANY THOUSANDS of POUNDS of PRESSURE (if) the Vehicle ISN"T jacked up correctly.a Ball Joint Press is the best,but a Large socket & a large hammer is one way IF U have done it B 4.