I'm more than a little embarrassed I have to ask the forum this after having 2 JK's since 2007. But ask I will.
I am diagnosing what I *think* is a bad unit bearing on my 2012 with only about 20,000 miles on it. The symptom is a really bad squeal / squeak that changes speed as the wheel speed changes. It's either the bearing or the front brake dragging. But I am pretty sure it isn't the brake.
Anyhoo, today I jacked up the front so I could spin both front tires. The sound is definitely coming from the passenger front wheel. But I did find that both front wheels were pretty hard to spin. You can spin them, but they won't free-wheel at all. They stop as soon as you let go. Then I noticed that the front drive shaft was spinning when I turned either front wheel.
So my question is, do these not have a normal locking-style hub? Or do they disengage in the transfer case? I guess I'm use to Fords where the hub disengages when you put it in 2H. So I just want to ask you guys if it's normal for the driveshaft to spin with the vehicle in 2H when you spin the front tires.
Thanks in advance. Now I shall go listen to my dealer blame my JCR bumper for a bad unit bearing. haha.