I have a 99 Eurovan onto which I have mounted a luggage rack and to that an Xcargo into which I want to load 50 to 75 lbs. The 100 lb. pressure struts installed by Winnabago won't even hold up the empty Xcargo and luggage rack. Someone else has done this I know. I can increase the strut pressure to 145lb. and or add two more struts to the front of the ones that came with the Winnabago poptop installation.