Yep, the shocks are well past worn if their the originals.
As far as the "Ranger Lean" goes, it's because the gas tank is on the driver side and the driver is the one that's always in the truck so most the weight is on the driver side suspension. Left turns are harder and more common then right hand turns so you get the added force and weight on the driver side suspension as well, especially the driver front corner.
Anything is better the the stock shocks, you'll be amazed in the difference when you change them. When you get the new shocks installed you can crnk the driverside torision bar bolt up to level out the driver/ passenger side and get rid of the lean.
:banana::haveabeer: