How do you know if your u-joints or ball joints are bad? I'm guessing there is play in the steering, but how do you pin-point what exactly is bad? My truck starts to shake at around 60 mph, gets pretty annoying on long trips. Also, it has recently developed what feels like the dreaded "death wobble", but I don't even have larger than stock tires or a lift. That occurs around 40 mph when it happens. I recently replaced the inner and outer wheel bearings. One last thing, the front driver's side wheel is wearing unevenly, with the inside 1.5" being worn down much more than the rest of the tire. Is that just a sign that it needs an alignment, or other parts mentioned above? Thanks for reading this long-winded post.