Inspect the shoulders and seat belts and whenever you find one with cuts or tears, replace it. Should the retractor be busted or not working, you should swap out the shoulder belt as well. The first step to take out the outboard front seat belt is to remove the B-pillar trim pieces, one at a time from top to bottom. After that, unbolt the retractor from the B-pillar and remove both parts from inside the vehicle. First, put the retractor and belt where they belong, install the bolt attaching the retractor to the B-pillar and finally put back the bottom and top B-pillar trims.