Anyone come across any solutions for stopping rattle on the hitch receiver for the 4x4labs rear bumper? I love the bumper and have zero issues with it. However, because of the angled design I have not found a good solution to stop rattle in bike racks or other hitch attachments. The traditional U bolt anti-rattle devices don't work because of the angled design and clearance provided by the tucked-in hitch. Any suggestions or solutions would be appreciated. Pics for attention and reference.