Coil Spring Air bags - what PSI?

Deb and Ed M wrote:

Thanks - we'll see how it goes this weekend. Both bags share the same air valve right now.

Splitting the plumbing will definitely improve the situation. Even after that, too much pressure in the bags will also add to the side to side sway. It's a balancing act between getting the lift you want but not using so much pressure that you get that bobbling affect.

Another thing to check is the shocks. Factory shocks are generally pretty wimpy and a firmer shock can help reduce the spring rebound that causes that side to side sway.

FireGuard wrote:
What tires are you using?
If you have the stock 20" tires they are terrible for carrying a load. Basically passenger car tires.
Get a good E rated tire.

This is sound advice. And air 'em up!

What tires are you using?
If you have the stock 20" tires they are terrible for carrying a load. Basically passenger car tires.
Get a good E rated tire.

boogie_4wheel wrote:

Deb and Ed M wrote:
The truck still seems to sway back and forth a lot....

Make sure they are plumbed independent of each other, so that you have to fill each side separately. This will help with the side-side motion some.

Thanks - we'll see how it goes this weekend. Both bags share the same air valve right now. I like this truck when I'm using it as my "car" - but the minute I ask it to do any work, it seems to fall flat on its face. If it can't get any better than the 10 mpg the display is currently showing, Ed is never going to take it out west....

Deb and Ed M wrote:
The truck still seems to sway back and forth a lot....

Make sure they are plumbed independent of each other, so that you have to fill each side separately. This will help with the side-side motion some.

I run them in my Armada and keep them at 35 PSI when towing and 10 PSI when not towing. I air them up prior to setting WDH and I do not use them to level my truck. They do help with ride and stiffen up the rear end. I think the Air Lift 1000's MAX at 35 PSI. WDH is what should be used to level your truck not Air Springs.