i re-read my previous post and i guess i kinda said it wrong.wasnt saying hydro assist was the cure.my problem was definately worn shackle bushings/loose shackles.hydro assist just seemed to help with a little tire wobble at higher speeds.when my buddy went to 10"wide rims he would get crazy death wobble and the hydro assist seemed to really help him out.sorry if i confused or mis-lead with my previous post.