I had this same problem. My original also had a stamped pulley that was held on by the bolts and my replacement had a one piece cast pulley. I had to grind little divets where the fan rivets touch. You don't want the fan just resting on the rivets but on the flat face.


1951 GMC 1 Ton Flatbed -- It is finally on the road and what a great time I have driving it!
1951 1 Ton Completed


My Chevy Master 4 Door is on the Road!