The clunk went away, it sounded like the front coil spring shifting in it's seat, maybe the surface polished up a bit so the spring can slide a little when the front axle flexes a little during a fast turn at low speed. The wandering bothers me, because the truck did steer so good, now I have to make slight constant corrections.
I checked the track arm and the link bushings they seem like new, and they should be, the truck is only 6 months old. My tires have only a third of their life left, could be the tires I had that problem on a car once. I'm going to have the alignment checked, went I put on new tires, maybe the alignment is slightly toed out, maybe as the front end worn in a little the toe might be out a little. I'll add a little more positive caster to improve the self centering ability.