I have one that worked great on my old camper, I have not tried it on my new camper yet I was told that it will not work, but I am going try it before I need it and it will not work. I also bought the trailer aid plus when I bought mine because it gives you an extra inch of lift. I have a different kind of suspension on my new 5er I believe it is a trail air, so we will see. I will let you know after I try it maybe later this week.
Scott & Vicki
2015 Silverado 3500HD 6.6L Duramax/Allison
2013 Columbus 295RL
Camped 2013 110, 2014 129, 2015 97
2016, Camped 69 nights, 25 Nights Reserved