A few months ago, my wipers on my 02 started to slap the side of the window. I'm surprised that I don't see more posts about this problem? The cause is that one of the flex joints in the linkage fails and the joint then wobbles 1/2 inch which causes a 4 inch extra movement in wiper tip.

 

There is a good utube to fix this using Dorman universal kit from an auto store. Unfortunately the video is about 90's subaru and it doesn't work on 00+ cars. I tried for 1/2 a day but the hole in the linkage arm is too small for the the plastic replacement part. Nor does the plastic fitting hold the ss ball all that securely even if it could be pushed in.

 

Of course, subaru doesn't sell the plastic fitting separately. The only solution is to replace the entire linkage: $101+tax from the dealer, $74+freight from online, or $30 from junk yard. I used the last option.

Check NASIOC, people long found a way to use aftermarket bushings for other makes sold under Dorman/Help! brand.

The point of my post was warn people that the information on the NASIOC thread does not work!

People do it on GD/GG Imprezas, so this must mean that Legacy bushings are quite different.