i tried doing a search and i don tknow if i was not putting in the right phrases or not but i am trying to figure out if the F4i and F4 swingarms are the same if not what is differant and could i use it??

i am in need of a new swing arm for my F4 and saw an F4I swingarm for cheap and in great condition! help me out guy/gals thnx....

 

I read a post recently which said the difference is in the bearings. The swingarms are supposedly the same.