This Slotted Nut is not included with new upper ball joints and is often damaged upon removal. Especially if you try to remove it with a punch instead of the proper socket. You used a punch, didn't you? DIDN'T YOU! Welp, that'll learn you. Now your nuts look like a dog's breakfast, don't they?

These new nuts are made of 316 Stainless and will last forever. Buy the proper socket for it now, would ya?