Some of the wetness around the oil filter and pan could be the orings on the filter housing leaking and oil cooler lines. They are a known leak spot. You can get the replacement orings and lines from leroy diesel. His lines are braided stanless with an fittings. They are a nice set i have them on my truck. The way gm connects them to the engine is a joke. The connectors fell apart as I pulled the clip off to remove the line.
As to the power steering pump can you see at all behind those bracket's? The reservoir should be back there. Do you have the plow for the truck? If not do you ever plan on using it? If not I would try removing all the stuff for it and put it back to the way it was from gm.
As to the power steering pump can you see at all behind those bracket's? The reservoir should be back there. Do you have the plow for the truck? If not do you ever plan on using it? If not I would try removing all the stuff for it and put it back to the way it was from gm.