I never saw that about the no jack use. That may be lawyer talk. I saw some folks this weekend in Port A only using one of these and the other tire was off the ground. I really think supporting both axles is better.
2015 338RETS Eagle Premier gloss sides., king.
2012 Ram 3500, crew cab 4x4 duelly Deleted
16k miles, 530HP, 1000 +torque.