Automatic or manual leveling kits

as noted by some the 'levelers' really are hit and miss IMO. I have some on the Aspect and they do not seem to level, they seem to raise one end and then thats it. I use them manually. Also carry 2x10 for the tires to sit on or to put down for the pads since most places are on dirt and they can sink in. My BIL (class A 35 ft) also used plywood pads for his set up under the jacks. Guy I know has a 24ft thor and he was told NOT to install jacks for whatever reason. If its stability you want after set up I told him to get some of the triangular trailer levelers to take rock and roll out. Cheaper and simple to use.