Thanks, man! Yesterday also googled this question, and found a couple of instructions on how to do that. I am not sure whether I will do that, but once I replaced the alternator brushes, so hoping to cope with the bushing as well. So I went online, compared prices of alternators and bearings (https://www.carid.com/alternator-bearings/), and decided to give it a try. Anyways I've got an F-150 (2015) to drive, so even if I completely break the alternator, I will order a new one and will still have a vehicle to drive to work haha