Jounces and Wandering? Ride Quality, 19.5s on DRW Feedback?

My F450 came with 19.5s stock. I find it rides fine (wanders some) but I'm used to 19.5s. I moved from 18s to 19.5s on my SRW.

I expect you will notice a ride quality difference and tendency for the front to track/wander. You biggest advantage is in stiffer/stronger tires.

I don't think you are anywhere near the capacity of 4 DRW tires in the rear. Have you thought about just going to the same size tire but higher load rating or considered running higher pressure in rear?