Best Air Ride Suspension For 2022 Grand Design Solitude 346FLS 5th Wheel Trailer

Question:

I installed the LC1565391 air bag suspension on my 2022 Grand Design Solitude 5th wheel camper. In all I have seen and read air pressure recommendation if 5# per 1000# of trailer weight and/or the pads on the air bags be about 5” apart and parallel. With this camper weighing 17,000# that would make the air pressure at 85#. When I inflate to that pressure the pads are not on the air bags are not parallel, they are grossly wide open. For the pads to be parallel I had to lower the pressure to about 45#. Is this normal? Am I missing something for the pressure to be so much less when the pads are parallel? Thank you

asked by: Bruce H

Expert Reply:

Going with an air ride suspension is a really smart idea, and the best upgrade for your 2022 Grand Design Solitude 346FLS 5th wheel trailer is the Lippert Center Point, which replaces your equalizers and gives you new ones with air bags in their place. The correct part number is the following:

- Lippert Center Point by Trailair Air-Ride Suspension Upgrade # LC1565391

The Center Point # LC1565391 is for tandem axles up to 8,000 lbs, which I verified your Grand Design does indeed have. When installed, this system will give you a much smoother ride than any other suspension upgrade because air bags do a better job of absorbing movement and vibration.

expert reply by: Kyle S

Bruce H.

10/31/2022

Kyle S.

10/31/2022

So your 2022 Solitude 346FLS has a GVWR of 16,800 lbs, and assuming you installed these unloaded, that would be at about the 70 psi range for the Lippert Center Point by Trailair Air-Ride Suspension Upgrade - Tandem Axle # LC1565391. However, it isn't a hard and fast rule that you have to have 5 psi per 1,000 lbs of weight. What you see is normal as there are variations in what the psi can be, so really the correct air pressure will be what you inflate them to in order to get the plates parallel or 5" of space between them.