selector switch
 

i was wondering if the 91 ford with the 7.3l in it had a return line. what im wonderin is i know the selector valve for the fuel tank controlled the eturn line also?

It would have a return line, not sure if/how it interacted with the selector valve though.

On my 85 w/6.9l the selector valve changes both the feed and return lines. It is located under the cab and has 6 lines to it. If there are only 3 then most likely not. Hope this helps.

ya thanks helps alot i know i need the return ine since im mounting my cummins in it

Glad to help good luck.:bombin::rock: