Bill
We also have the air bags along with an onboard compressor and gages. I wish I had put them on long ago. Our Ford 350 is a campers special and I felt that I didn't need the air bags. The Montana didn't set the truck down that much with the overload springs on it. However, traveling down I-10 one day, I felt it was bouncing to much. We installed the air bags and it settled down the bouncing and gave me a smoother ride. I run 50 lbs when I am pulling the Montana and about 10 without. With the gages i can watch the fluxuation of the rear (a good 10-15 lbs either way) indicating that they are working. Its worth the price. I had campers world put them on.
Ken and Velda Taylor
Dahlgren VA
2005 3475RL Montana
2000 Ford F350 Diesel