Ryan.Kimberly

I've been hearing a rattling noise from the rear when I'm slowing down and when I'm stopped at a stoplight. But when I'm in motion it only does it sometimes. (have loud exhaust with 4:10s so hard to hear it if it is at higher speeds 50+). What would this be? I've been told it's my sway bars but when i tightened them it stopped. I've tightened my clamps as tight as I can get on my exhaust because that used to rattle at times but that stopped too. Would my wheel bearing be going bad or what would it be because I'm lost and can't afford to fix something that is not broke.