Caster out of spec...what are my options?

[TurDz]

I got my car aligned a long time ago and I found out my caster on one side is very far from the stock setting. They said it couldn't be fixed either, and that it was probably due to an accident and something got slightly bent (drifting into a curb btw... ).

Anyway, what are my options to get it back to stock oem spec? If I simply replace the tension rod on that side, would it correct the caster? Or maybe a different component was damaged?

I would spend money on SPL tension rods, but I am not prepared to go solid rod ends just yet. I'd appreciate any insight on this topic. I've been driving with a slight pull to the right for probably 1 or 2 years, so it's not too urgent for me.