I have a 2008 Titan , I added a 3/8 inch extra leave spring in the rear , I haul a 20 V-nose ATC (total length 24 ft all Aluminum ) trailer that is approx 3200lbs empty , it is approx 5200 lbs loaded , I tried without a weigh distribution hitch and it was tough to haul ...trailer sway on the highway ...added the equalizer hitch and solved the issues needs to be set up correctly ..truck and trailer level when connected ....