Take the 2-minute tour ×  About a month ago my trailblazer
developed this new features. When you get into the car and start
driving, everything feels completely fine. Then after about 5
minutes you start noticing slight vibration (very slight, just
feels like something isn't quite right). After about a 20 minute
drive, the vibration is very noticeable. By that time, it almost
sounds like low engine rumble, but its pitch and volume vary
directly with car's speed, not engine speed. When it gets to
that level, it is also easily felt in the steering wheel.  Three
weeks ago, I jacked the car up and noticed that there was a ton
of grease spewed around passenger side CV boot. So I went
through the motion, which took a while for various reasons, of
replacing passenger CV shaft and while in there, also rebuilt
4WD disconnect with fresh bearings and seals. Yesterday I put
the car back on the road and the vibration is still in there
unchanged.  I tugged on both wheels to check wheel hubs and at
first glace the wheel bea