My first rig after 40 years of motorcycles. Love it. One concern. I’m getting a rattle in rear when slowing to a stop or crawl. Nothing on acceleration just decelerating at lower speed. Goes away upon stop and idle. Sounds almost like a heat shied rattling. Pretty loud. Checked everything visible and all seems tight. I live 100 miles from dealer and sure hate to haul this in for what I suspect is minor. Ideas?