For anyone who might need to remove and replace a front leveler on a Journey, thought the following might be helpful.
My right front jack was leaking quite a bit. Ordered reman jack from HWH, $175 with shipping. Removal was fairly easy. I raised the jacks, aired up the suspension and turned the wheels to the left. I was able to sit upright behind the right wheel. You must disconnect the sensor that indicates jack position. Then use a 5/8"¯ open end wrench to loosen the hydraulic fitting.
While in the sitting position, I was able to stretch the springs by pushing down on the jack foot with both hands and move the jack foot off to the side. Then you can remove the springs and jack foot.
At the bottom of the jack, there are four 9/16"¯ bolts holding two plates.
Once removed, the plates come off and the jack will drop out of the frame. My rig is parked on a gravel pad, so I was able to dig out a little trench so the jack would drop down enough to free it. If you are parked on a hard surface, you will likely need to jack up the rig a bit to get sufficient clearance.
The jack will have about 2/3 quart of oil in it so beware if you lay it down or turn it upside down.
You will need to remove the sensor from the center of the jack to re-use and the straight fitting (the reman jack comes with a T fitting).
The new jack is also filled with oil so make sure to keep it upright when removing the center plug for installation of the sensor. As noted, you will need to remove the T adaptor and re-install your straight fitting. Use one of the caps from the T fitting on the straight fitting to keep the oil from leaking out until you get the jack back on the rig.
Installing the new jack is fairly easy...just reverse the removal steps. This took me about 30 minutes....could have done it in less time if I weren't so old and fat!