Noice in front when 4wd

[zwed]

New owner of Explorer XLT -92.
When running 4wd there is a noice in front like something is scratching when rotating, it sounds very bad .
When switching to 2wd the sound almost dissapears but you can still here it.

What can it be?

 

[Mbrooks420]

Do you have the stock auto hubs? They do wear out frequently and could be the cause of your problem. Just a guess though. I suppose it could also be related to the front axle u joints. You could give them a feel for any unusual play.

 

[zwed]

Think I have the auto hubs, only owned my car for one week. How do you see what kind of hubs you got?
What is the front axle u joints? Excuse me for asking but my technical english is not that good .

 

[Mbrooks420]

No problems with the english You'd be able to tell by looking if you had manual hubs. You'd have to "lock" and "unlock" them to use 4wd. The front axle uses u-joints on your year I think.