Someone will come along and correct me if needed but I don't believe you want to be doing that. Here's why. I have a class C with auto leveling jacks. At least on the Ford E450 under a class C, the brake is tied into the rear wheels. I was told, in my situation, it would be OK to raise the front wheels off the ground but not the rear wheels - so the whole thing doesn't roll away. Not sure this applies to class A (although it seems likely) but you probably want to find out for certain.
All previous rigs below are sold - waiting until the kids graduate to the buy the next one!
'13 Forest River Sunseeker 3100 Class C
'04 Fleetwood Sedona Pop Up / Reese Mini 350 / Prodigy / BAL
'94 Coleman Cedar Pop Up