Alaskans are VERY particular about leveling your rig before attempting to raise the top. The DESIGN is for level ground and owners of them carry a level or a round "dot" level and try to get the fore and aft level and the side to side level before attempting to raise the top. This may require some additional means of raising two wheels at the rear and perhaps one at the front on really slanted terrain.
I made my leveling blocks out of scrap. Digging in what may be very HARD or rocky ground ain't my idea of what to do after driving all day to get your rig level enough to raise the top!
I went with the K.I.S.S approach.