Hello all, I am not very mechanically inclined at all, and during a pre trip I noticed this bar sitting on the drive shaft so naturally out of curiosity I pulled it up and when I did it let out a loud hiss of air from I don't know where. It doesn't seem well secured and seems like natural bumping of the truck could cause it to discharge air or something. I don't know. Any body know what this is? Should I leave it like this?