GEN-Y GH-1002 The BOSS Torsion-Flex Weight Distribution Adapter 6.5" Drop Hitch Only for 2" Receiver - 10,000 LB Towing Capacity - 1,100 LB Tongue Weight

Removes all the bouncing from the trailer from being transferred to the truck. Works great but is very expensive and heavy.

This really took a lot of the bounce out when pulling my 30' camper. Very pleased, but pricey.

This 6" drop is more like 1- 1/2"

Spendy