Ok, I replied to you IM with this info; ok, then the seals and prob da bearings need replacement.
you can rent the spindle nut tool & puller @ Auto Zone and other parts places for a refundable (approx. $50.00) fee as Bigblue described.
Those articles I gave ya show the puller you'll need. Do you have any friends that have experience to help you?
have to roll now; will be back here WED.
you can check to confirm if its a 10.25 rear by looking at Bigblue's pics of his 10.25 at this Cover Gasket Depiction to verify; U.S. Gear Corporation
http://www.usgear.com/tl/ford2.htm
&
10.25 Seal Replacement in a 92 Bronco
Source: by Zach K (BurnedB, BurnedBronco, Badassbronco) at http://fullsizebronco.com/forum/showthread.php?t=5647
10.25 Seal Replacement in F250/F250
Source: by Tom at thedieselstop.com http://www.thedieselstop.com/contents/getitems.php3?Axle%20Seal%20Replacement
SKF Bearings
Scotseal® Plus XL