Distance between jacks with swingout brackets?

There's only 3/4" on each side between the fender wells and the sides of the camper. You'll hit the fender well in the bed before you hit the jack on the outside. It seems tight but it helps you get the camper on straight.

My biggest problem is the tires rub the jack feet as they squeeze through. If the jacks were tall enough to lift the camper without blocking it wouldn't be a problem, but I have to have them up on 4x6 blocks.