Successful install completed, but I had some trouble getting the fan reinstalled. When I removed the fan from the "Step 14" post, the rubber piece stayed on the post. When attempting to reinstall the fan, it was impossible to get the loop to go back over that rubber piece. So, I had to remove the post (again), and with the help of the spudger and some patience, worked it through. Then installed the fan using the 2 screws and the post. I think it may have saved some time and trouble if I just removed all 3 in the first place, leaving the post in the fan.