[96wWindstar180K]

Searcherr The pulley your refering to is the idler pulley. The tensioner pulley is at the very back of the engine. With the engine off you can use a pry bar to release the tension enough to remove the belt. The idler pulley are available from Auto Zone or other good auto part stores. The bearings are sealed. The part only cost about $14.00. Very easy to replace. Check your serpentine belt also. While its off look for cracks and signs of wear. How many miles? What engine? If the tensioner pulley has not been replaced I would replace it too. The original equiptment is much easier to remove the slack from the after market you have to use a pry bar or large screwdriver. The original uses a half inch or 3/8" square hole for a ratchet or breaker bar.