IF THE COTTER PINS ARE STICKING OUT ENOUGH TO GET A STRAIGHT HIT AT USE A SMALL PIN PUNCH AND THEN GRAB THEM AS CHRIS MENTIONED ,WITH A PAIR OF VISE GRIPS AND PULL , IF YOU CAN,T GET ANY KIND OF HOLD ON THEM JUST TAKE A WRENCH THE CORRECT SIZE PREFERABLY A SIX POINT, AND GIVE A QUICK JERK ON THE NUT AND IT WILL SHEAR OFF THE COTTER PINS , THEN WHEN YOU REMOVE THE BALL JOINT TAKE A SMALL PIN PUNCH AND TAP THE COTTER PINS OUT , THE NUT IS A LOT STRONGER AND HARDER THAN THE PINS, THEY ARE PRETTY SOFT ,DO THEM ALL THE TIME THAT WAY, TAKES TO MUCH TIME MESSING WITH THEM . JERRY