I hit a curb and caused damage to my suspension. Upper control arms and left knuckle assembly has been replaced. Got a wheel alignment and the technician tells me the caster needs to be adjusted. So, I'm thinking, caster means Front LCA's. In order for me to drive straight down the road have to turn my wheel to the right, so obviously, I hit the curb with my left front wheel. After all control arms have been replaced then what next if the problem is still there. Could it be possible that the wheel is bent? Thanks for any insight and expertise.
Chris.

Could be lower control arm & if you hit it hard enough the front beam. Hard to say without seeing it.