Front: 4,640
Rear: 8140
Plate tire pressure is 65 PSI front and rear. Tire size 225/70/19.5, LR F. From what I see, I'm way under weight for this pressure. As I understand it, I shouldn't use lower than plate pressure, but the build sheet from Workhorse does spec 60 psi in the rear. Might lowering it to 60 psi in the rear help?
I have a stock rear sway bar with new polyurethane bushings. I have a Davis Trac bar (rear) made by Roadmaster. I looked at the rear springs, and they don't have an arch to them, whatever that means.
I think I'm going to get a set of Sumo Springs and see where that leaves me. If there is an improvement, then I can order new springs and get them installed when I get home, and keep the Sumo Springs. If that doesn't help, look at a Steer Safe. I'm guessing I will end up with one eventually.
