Agree with
@BryanValRox. Question. Are you running with air bags or adjustable air suspension on the rear? If so, that needs to be dialed in also. Running at higher pressures drives up the rear end to the point where you may not be able to achieve the correct sag on the factory suspension. if you are running with Timbrens specifically manufactured for the F350, most find them to perform better when you delete the additional spacer block (the add on part that sits closest to the frame, it's a disc). I may be stating the obvious, apologies if so, but measure the distance from the ground to the top of the rear wheel well loaded and unloaded. Ideally, one to two inches of sag. More can be okay. You want the front wheel wells to be within about an inch of the unloaded height. Anyhow, I hope this is useful to you and others. You can fiddle with the adjustments at a scale too looking at weights and the distribution to both of the truck's axles which might inform whether you need to adjust the pivot arms on the B&W. Others here know I am a suspension nerd...sorry if this is too much info!
Flipping the pivot arms, more forward, mor rearward, can also adjust ride height because of weight distribution characteristics across the trailer and the truck.
This adjustment process not only improves ride quality, vehicle and trailer control, but also braking effectiveness and load distribution across all axles, tires, etc. Lots of little systems are involved in trailering suspension adjustments...and I obviously find it way too interesting!!!
