Just because they are pretty expensive, I was wondering, if you could only get and install one at a time, would you get the Helwig front or rear sway bar first? My coach is a 2006 E450 Super Duty /...
As noted above tire inflation is one of the components. Like you I thought of aftermarket stuff but went with inflation of tires and REAR AIR BAGS! You do have airbags correct? I run mine around 55-60 PSI and it made a great difference and with the better tire inflation it did help. Give it a try 1st.