[bstark]

Here's something else to consider, the travel stroke length of the rear cylinders is very short in comparison to the fronts and if the drivers side rear stabilizer has reached (or close to) the end of it's travel, the only option for the hydraulic pressure created by the running pump is to continue sending down the other leg. I suggest you have a couple of thick blocks made for the rear legs and always use them as those rear legs will not compensate for your rigs wheels being up on blocks.

This problem will be exacerbated if your rig has been raised on it's supension to give truck bed clearance as well.