I have a 3 ton aluminum floor jack that I keep in my truck bed. A floor jack is a lot easier than a bottle jack to put in place. I haven't had to use it yet, but I do have it ready.
2006 GMC 2500HD CCSB 4x4 Duramax/Allison, Titan 52 gallon fuel tank, Prodigy Controller, B&W Companion Hitch
2010 Jayco Designer 35RLTS, Cummins/Onan RV QG 5500 EVAP, Progressive Industries EMS-PT50C, TST Systems 507 TPMS, RV Flex Armor Roof