93 sport 4.0 auto 230k miles. I have a loud humm comming from the front end when I drive over 40 mph. I pulled the front wheels off to check the wheel bearings, ( i've replaced one of them before) When I turn eather one of the hubs the whole thing turns over, the opposit hub and the drive line as well, I don't remember this from befor. Could it be stuck in 4WD or maybe the vacume thing not releasing or just my imagination? What can I check.

Thanks

jh

 

my 99 did the same thing when i was checking my bearings the other day.. i just assumed it was normal?

 

It's normal