I purchased a 2015 FJ a few weeks ago and it needed a new chain / sprockets. All went well except for two things:
The front sprocket came off easily, but the new one (sprocket center) would seat and I had to hit it with a small wood mallet a few times to get it seated, but I'm not sure it seated all the way. I assumed torquing the nut would seat it. See below. Is this normal / will it wear over time?
Also when I was replacing the rear brake, the front bolt wouldn't threa