Yu can purchase the manual hubs plus the hardware kit for about the same as
what one auto hub costs...... while the auto hubs are more convenient, they
are failure prone. In your case (the noise), the bad hub is trying to eat
the good one.


"Maida" > wrote in message
lkaboutautos.com...
>I have a 1991 explorer with automatic locking hubs. When I switch from 4H
> to 2H, there is a very loud grinding noise when driving forward. If I
> disengage the hubs by backing up, then the sounds goes away. It also
> sometimes does it when I drive forward in 4H. I noticed it started after
> I was trying to gain traction on ice and I put the truck in 4H right
> before backing up. I am pretty sure its one of the hubs, but is there
> something else I should look for? I just had the 4wd motor replaced a
> couple months ago so it shouldn't be that. How could I check to make sure
> what it may be. I have also seen some postings about changing from auto
> to
> manual hubs. Is this advised?
>
> Thank you,
>
> Josh
>