Levelling blocks for camper on driveway with 2 degree grade

BeMurda wrote:
I guess I don’t need blocks if I can just use the jacks, since it is smooth concrete.

Steel slides on finished concrete pretty easy. Easy enough to move down the drive? Not likely. Easy enough for the camper to look like a new-born foal trying to stand first time? Slightly more likely. Enough to put un-needed stress on jack/mounting points? Rather bet on galloping dominos, know the odds, and how much I'm laying down.