Apparently its damn near fucking impossible to change, I took my Sling in in October because of the noise. My warranty was about to expire and it was getting cold Here. The recall came out the next day. I called the dealer and told him about it and He suggested I leave it there in their covered lot until parts arrive
January they called and said parts were on the way,
Mid February they called and said it was on the way,
February 28 I got the swing-arm, I told them I would remove the bearnigs and have it powder coated and return it, I bought new bearings because I knew the possibility of damaging them would be high. I returned the swing-arm to the dealer a week later. A week went by and they called and said it was ready. I went to pick it up and it had the traction control and anti lock lights on. I took it for the night because I had a package to deliver about 80 miles away and I wanted to drive the damn thing, it had been five months.
I took it back to the dealer a couple of days later so they could fix the lights. They said that the bearings were installed wrong. They looked at another replacement swing-arm and installed them the same way. This was apparently wrong.
They damaged the shaft removing the bearings. and now I'm waiting for parts again.