I mounted the front of the drag link under the spindle steering arm instead of on top like factory. That gets the drag link close to original angle with a 4" drop axle, but not exactly, so I do believe there is a bit of bumpsteer coming into play here. Also, I was mistaken in my original post. With drag link unhooked and box centered, the top of the steering wheel was at about the 10 o'clock position. I changed it so top of wheel is now at noon with box centered, and then re adjusted drag link so wheels are straight while top of steering wheel is at noon and box is centered going down the road. I didn't notice much, if any, improvement. It's not a big deal, just a little wander. I'll have to live with it, I guess it's just the price of looking "cool". Haha