2000, 4x4, F-350, 240k miles: This problem started about a month ago. The truck would have a severe sticking spot in the steering while trying to turn right. After that the steering wheel would jerk left to right back and forth back and forth not staying on center. I replaced to steering gear box with no fix. I removed the steering stabilizer and still had the same problem. The issue has gotten more severe, I limped home under 20mph with the wheel bouncing left right left right etc....
Could the original front axle u-joints be binding? There is now issue while making a turn only while driving straight.