Our 05 has the early model Hyd jacks with square tube and another square tube extends, the hyd cyl is inside that. To remove this type cyl, you need to have a space below deep enough to slide the inside tube out with cyl in it and change out. Disconnecting the Hyd lines and unbolting the inner tube at the top.
You can park over a ditch or dig a hole. Some shops have a pit to center it over.
Not familiar with the other type jacks in later models.
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