Looking for help, or ideas.

autoxcuda said
If its changing when you are moving the car forward and back, something it not tightened down or something is broke. Typically that situation would be a broken stud hole in the K-member that the lower control arm stud hole goes into. OR the lower control arm stud nut is loose.

What were the "issues" with the old K-member you took out. Whatever happened to it, may have happened to other parts of the car.

The original K-member had been welded on, not sure why, but the welding was horrible, so decided it was better to replace, I'm gonna climb around under it now and recheck all fastening points for tightness and got someone to help me so I can be outside car and see if I can figure out what is actually moving