I have a 5.9l out of a 2000 ram and i wanna remove the fan. before i go and try pulling it off I wanted to know if it has reverse threads and if there is a special tool used to keep the pully that its attached to from turning. thanks

Look down the first page in the Dodge forum a bit further. You'll find your answer. ;)

http://pirate4x4.com/forum/showthread.php?t=617162