I, for one, will definitely be changing my steering system, with or without the solid front axle. It's not a reliability question, as someone else here brought up. It's the bump steer. It's horrible. There are a couple of ways you can reduce bump steer, but the simplest way is probably by using a rack and pinion.
I have no doubt the rack and pinion shown would work. There really isn't a lot to them. Having a way to mount it is the main thing. Yes, I am certain it would go a long way to make our AD trucks a lot more sure-footed on bumpy roads and highways.
An independent front suspension would be ideal, but changing out the steering system would help.