1972 dart swinger tail light socket

Mine were not much different. I used penetrating oil to get the bulb out. Then I soaked the socket in vinegar. Some improvement. Then I soldered a ground wire to the outside of each socket to eliminate a bad ground, but if yours light up then you can skip that. I used some emery cloth on the inside and a bunch of electrical grease before I put the bulb back in. So far so good.