Forum Discussion

cheftim's avatar
cheftim
Explorer
Sep 15, 2020

Need Suspension Mods

I've got the rig in my sig: 2017 F350 with and Arctic Fox 990. It's me the wife and the dog. Don't haul much liquid. Figure I'm around the 4000 lb mark.

I've put in the Rancho adjustables front and back, Firestone Air bags, and the larger bump stops that engage the overload spring earlier.

Not loving the air bags on this rig. I've tried anywhere from 10 to 60 lbs.

At 10-20 lbs, I hear something banging when I hit a bridge expansion or frost heave in the road, like something's bottoming out.

Above 20-25, I lose the banging but it's way too bouncy side to side.

I'm thinking maybe a Big Wig might help out on the side to side but I feel the issue is probably the air bags and something like helper springs are the most appropriate solution.

Hoping to get some feedback from folks that have the same truck and similar weight camper to get a more solid ride that isn't compromised when camper is off.
  • What settings are you running your shocks on? Also, what tire pressure/tires are you using?
  • I have a Northstar Igloo on a 2013 F350 CCLB SRW and I added Sumosprings and Torklift upper stable loads. That seems to work for the suspension and to get rid of some sway I am adding a BigWig swaybar, replacing the wimpy OEM swaybar, next week when I have a moment. I'm sure your rig is heavier than mine so an additional leaf in your spring pack might be in order. Can't really tell you what to do, just what has worked for me.