OK, finally here on the pictures. You all made me worry that it might be out of ballance by welding, so this is how I re-did the clutch. As you can see there is no welding, I made the adapter by using a washer and a center bolt from a leafspring pack, and a 1 1/2" set coller. As for trimming the fan. I trimed 1/4" wide 1" long on the tips of the blades. The fins are alumium, I dont think that I could have been off enough to make a damaging vibration. Also the new fan with clutch and adapter is still lighter than the orignal steel fan. The clutch and fan are for a 1996 f-350 with a 460 motor. you can see the Napa part # in the picture. I love this mod, the only problem I have found is running the gears out too far, The motor is much quiteter.
Good Luck
PS I cant Spell to well. LOL