Had front tires replaced and truck immediately devloped a very hard shimmy. Took it back to tire shop and had all wheels and tires re-balanced. Shop couldn't see any reason for the shimmy, other than i would need new ball joints in the near future. So replaced the ball joints. Shimmy is not as wild as before, but still very noticeable at 45mph. Really don't dare to drive it anymore and its our only vehicle and we live in a rural area. Can't keep dropping $$$$ into it, one piece at a time, and slowly rebuild it. Gotta use it to go to work somtime.