Here is where the real fun begins. If your car still has its original upper ball joints (theyll be riveted in place), youll have to grind off the rivet heads and drive the rivets out with a punch. We used a cutoff wheel to grind the rivet heads flush with the ball-joint body, which made it relatively easy to punch out the rivets. If you dont have access to a cutoff wheel, weve found that center punching and drilling the rivet heads is a good alternative to grinding. Be sure to first drill a pilot hole with a smaller-sized drill bit and dont drill too far into the ball-joint body before using the hammer and punch to drive the rivets out. Drilling too deeply means youll drill into the A-arm itselfnot good. The lower ball joints are held in place by rivets as well as a nut; removing the nut first will make rivet removal easier.