Yep, more like a foot of slope not 4..my mistake...think if I can block of the front enough to retract the jacks in far enough, and the get them back up to hook back up to the hitch, should be fine...right now I have two cap blocks under each jacking foot, may need to put another one to make it three high..
Originally Posted by flyrotor
I was expecting a huge slope as 4/12 would normally mean 4 feet elevation in 12 feet distance, such as the roof of a house. I think you meant 4" in 12 feet.
My suggestion would be
1) dig and place concrete where the wheels are going to sit, probably about 4 to 6 inches below the grade,
2) build large blocks for the front jacks that are solid to allow a short extension on your front jacks. The blocks will be more stable than the legs of the jacks.