Hi guys, Well, after reading one place that it was left handed and others saying it's right handed thread, I thought I'd go down and try to break it loose again. Boy, did I feel stupid. You know how when you look at something many times, you tend to not see it? Well, underneath where it says "caution" on the fan shroud, it says "Fan clutch is right handed thread". Oh boy, no wonder I was frustrated when trying to remove it. I put the two clutch wrenches on, and I struck the wrench several times with a hammer (counterclockwise this time), and voila, I felt that familiar "give" as the nut loosened. I unscrewed the nut, and off came the fan and clutch assembly. I gently lowered it, (being careful not to come in contact with the radiator fins), and when it was resting on the frame I climbed under and easily pulled it out from the bottom. I have a manual transmission, so maybe the automatics would have cooler lines down there..not sure. I didn't have to remove the serpentine belt, the shroud, hose, or anything. It appears that most of the silicone from inside has leaked out, and the bearing in the clutch is definitely worn out, and after I unbolted the fan from it, I cleaned all the silicone that had leaked out onto the fan blades. The fan is solid, and in perfect condition, but if I had left this 23 yr old clutch much longer, it may have torn up the bearing in the water pump, or maybe have come apart? (Not sure if that happens) I don't understand why some of the 4.9's have left and some have right, but it can certainly cause aggravation. Hopefully, all the shrouds tell which threads the clutch has. I figured maybe someone else would benefit from this, so I felt I should describe the procedure. The new clutch is $32.00, so if I had done it correctly to begin with, this would have been a fairly simple and inexpensive repair. Thanks to all.