Steering rack “rubbing”?

On full left turn I feel what seem like rubbing, I know I’m not actually rubbing because I’m on 245/75r16 .
I had a shop check it out and the said it was something with the rack but I honestly forgot what he said. He told me don’t worry about it “yet”? Is this a problem? I am doing stuff with my CV’s and a regear and suspension (all that goodness) and if this is something I need to switch out I’m thinking I should get it knocked out. Unless of course it isn’t something that needs addressing because it isn’t getting worse.

 

Anyone experienced this?

 

Steering ujoints are known to seize and pop around.

Have someone watch the ujoint by the exhaust manifold while turning the wheel back and forth.

 

Can you circle what I am looking at in this photo? Where the u joint is. And what am I looking for? Sudden jerks? It only rubs on full lock. Otherwise perfect.

 

What exactly am I looking for and what will it tell me if I do/don’t see it?

 

Binding, it should rotate smoothly, they are quite common..