Trailer

Weight Distribution
Weight Distribution Trailer Hitches Information Video | etrailer.com - https://www.etrailer.com/tv-weight_distribution_faq.aspx

How Towing Weight Distribution Systems Work - HowStuffWorks - http://auto.howstuffworks.com/auto-parts/towing/equipment/hitches/towing-weight-distribution-systems.htm

Common Weight Distribution and Sway Control Questions | etrailer.com - https://www.etrailer.com/faq-weightdistribution.aspx