It would take decades for those solid cast iron A arms to rust through.
2007 ELXD with front disk brakes. Replaced all A-Arm bushings, installed new adjustable shocks, adjusted to proper toe in. Put it back on the ground and noticed that it has approximately 3/4" negative front end camber. Checked the ball joints and they are warn out. Ordered up new ones that are being shipped today. Question is, If I still need to take more negative camber out, how do you do that with the knuckle assembly. Thank you in advance and I’m a better carpenter than mechanic!