Exactly as others said, I use the equalizer brand 4 pt, I raise my truck up about a foot and they slide right on. same thing to disconnect, raise it a foot and they slide right off. I was scared the first time because I did not know if the jack could take lifting that much of the truck. I haven't had a problem in 4 trips so far.
2015 Forest River EVO 2850
2012 Dodge Ram 2500 6.7 Cummins
Yamaha 2k x 2 with parallel cable
EMS 30 PI portable w/ Edison plug
Nights Camped (2016-13) (2015-13)