My caster bushings fell apart and it was just plain dangerous to drive on the road. Although this is our off road rig, we don't have a trailer so we drive 20 to 40 miles to trails. I had a machine shop press in new bushings in the front arms ($80). Then welded the washers in the front of the bracket (about 4 hours of sketchy work with high lift and floor jacks leaning all over the place). Went for a test drive and OH MY GOD! It's a miracle! It drives straight down the road! It is obvious now that the caster correction bushings never did work for me. I recommend anybody with a 4 inch lift to buy front brackets and use stock bushings! Don't bother with caster correction bushings. If you still insist on trying the blue bushings, just buy them from me! I will make you a great deal on them! Pics below, L.B.