[I need help identifying this part.]

Makes sense. Thank you so much for the info. I was thinking about getting a skid plate and thought that this brace needed to stay there. 

 

 

[I need help identifying this part.]

Hello there, 

 

long time lurker, first time poster. 

 

I was hoping someone could help me identify the part shown in the attached picture. Skid bar? I'm not sure. The passenger bar has a hole due to rust and needs replacing/repair. The problem is I don't know what to search for. How important is it? I apologize if it's a silly question. 

 

P.S. The picture is for demonstration and not my pathfinder