Hey for those that are running 19.5's on their DRW, what is the lowest air pressure you can run while not towing and still be safe? Thanks in advance-

 

i don't have 19.5's on my f350, but the lowest i'll run on the 235/85-16' is 60 psi. anything lower i get the fish-tailing effect. those larger tires are harder and may not flex like the smaller ones would.

i'm curious also

 

its best to ask the tire manufacture what the lowest air pressure you can use or what they recommend be used in that tire.