Our 195RB didn't come with them either so I added them as well. As Kim Gass stated on the 195RB the direction needed to be reversed. The problem was when the bed was down and the struts compressed it created enough force pulling away from the head of the bed that it started pulling the 2x2 at the head of the bed out and ripped the plywood off the hinges. After replacing the hinges with something more appropriate and adding in some extra support to keep the 2x2 at the head of the bed tight it's been working great.
TT: 2015 Jay Flight SLX 195RB Baja Edition
TV: 2014 RAM 1500 Bighorn CC, 5.7L Hemi, 3.21, Factory Air Suspension/Tow Pkg, Andersen WD/SC