71 Dart Camber Issues

Yup, yup. The lower control arms bear almost all of the load to hold the front of the car up. That's why whenever I rebuild a Mopar front suspension, I install poly bushings in the LCA even if I plan to run rubber everywhere else. You might also check the upper control arm cam bolts, because every now and then, they get where they will not hold an adjustment anymore. The bolts get worn and stretched and they just cannot tighten down properly anymore. The most likely culprit though is what 72bluNblu already said. The LCA bushings. It's very common.