I am running bus tubular rear trailing arms. Going to be doing air bags soon. Question is do I need to stengthen up the rear arms? If so are there any ideas on how i could do it?

I see you are from Texas.Do you need long travel there? If so put 3x3 arms on it change the pivot on the arms and run VW vanagon axles there are two different sizes in a vanagon use the long one on both sides there 21 in I think so you can get more travel .The longer the Axel the more travel you can get