WardL The pressure of your grease gun should push the little ball in the fitting back and allow the grease to go into the joint. If the grease gun handle gets real hard to squeaze and grease leaks out before going into the fitting the ball is stuck. Try a small hammer and a shape punch and TAP to lossen the ball. If the ball moves the grease should go into the joint and the boot will grow with the new grease. If not, replace the fitting. Auto stores sell kits with all the fittings. If the fitting is replaced and the grease will not go into the joint, jack up the car at the "A" arm and try again. If not replace the joint. If the little ball doesn't reseat in the fitting and the grease comes back out the little hole try with your hand and punch to push the ball and regrease and see if this stops the flow. If not replace the fitting. Good luck Rick L. Ps you need only 1 -3 squeezes of the handle to fill the joint. Should be done every
oil change or after the car has been in a rain storm.