I had trouble finding that Chrysler part everybody said it was discontinued and I'm cheap so here's what I did. I used a piece cut from a 3 inch driveshaft and capped both ends. Top side I cut a 1.25 inch hole and welded on a fill neck I cut off an extra pump with a factory cap. Bottom side I drilled and tapped to half inch not and threaded in a 3/4 push on hose fitting. That's my reservoir, holds a quart.
On the pump I found a copper reducer that reduced down to half inch pipe and slid over the top of the pump filler and soldered it on. Connected the pump to resi with 3/4 hydraulic return line.
To answer some of your questions, the need for added fluid is partly for cooling and partly because one side of the ram requires more fluid to fill.
And the factory return line on the pump will neither draw fluid fast enough or pull fluid in when it's needed. You'll need to plumb a resi into the top of the pump and mount it higher than the pump
On the pump I found a copper reducer that reduced down to half inch pipe and slid over the top of the pump filler and soldered it on. Connected the pump to resi with 3/4 hydraulic return line.
To answer some of your questions, the need for added fluid is partly for cooling and partly because one side of the ram requires more fluid to fill.
And the factory return line on the pump will neither draw fluid fast enough or pull fluid in when it's needed. You'll need to plumb a resi into the top of the pump and mount it higher than the pump
