Well dam like Wild One said..quit being lazy and take it off...isn't like your truck is a racer,or leave it on and wait for the other side to break then take it off....how bout you suck it up for a couple weeks and drive like a normal person and not worry about it.
My Initial thought was that looks just like the strap the ac guys hung my handler from in the garage couple days ago..thats around 100pds at most...they used 6.....what's that tell ya about yours?
Also...what's that dent I see in the bar to the right of that bushing?what did you hit?