Upper control arm replacement

It is my 1st time doing this , I guess I will buy that tool everybody keeps posting, looks like a cloths pin or bag clip with a screw bolt running thru it, I'm guessing you put one end in between the joint an the other end at the bolt of ball joint bolt an torque it done an it pops it off, Since I put the newer engine in its been my daily driver
kind of. you torque down on it to preload it, then strike the side of the spindle with a ball peen handle and it usually pops. loosen the nut but keep it on, because it can pop somewhat violently, and watch your toes if the tool goes flying....