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I just want to confirm the crappy picture in the service manual & my old pictures from a few years back.
High pressure line (from the pump) goes into the lower/outside left side of car fitting on the rack. Low pressure return goes in the upper inside/right side of rack. On mine that is also towards the rear of the car in relation to the other fitting.
High pressure line is going to have the factory clamped fittings, your return line will just be a 3/8" hose I believe. You probably already knew that. What year is this vehicle??
'90 but supposedly 85 - 94 has the same rack... almost anyone can look. I know what line is which, just making sure I'm installing the lines in my new rack correctly. You know how it goes, parts house takes days to get a new one & I've slept since taking out the old one.