Power Gear levelers
quote: system uses the rear jacks for side-to-side
The key here is how many jacks do you have? If it is a three jack system then you do use the rear jacks to level side to side and the unit will tilt on the lone front jack, which is located in the center. But if you have a four jack system, then you must use the jacks for leveling in pairs, to avoid twisting the frame. To level front to back you extend both jacks at the low end. The to level from side to side, you extend both jacks on the low side. But never use only one jack in a four jack system, once all jacks have touched the ground. Owners have actually popped their windshileds out of the motorhome by twisting the frame using only one jack at a time!
And it really doesn't matter what the jacks are mounted on, the priciple is the same.