Reinah817

I have a few questions. I'm doing a frame off right now on my 84 Cutlass Supreme Brougham. When I took it apart it had 3 fuel lines, feed, return, and vapor. I haven't ordered any lines yet but I did order a sending unit from spectra. It only has 2 lines, feed and return. Feed is 3/8" and return is 5/16". My first question, do I need a sending unit with all three lines or can I use the one I have with 2 lines? Can I run the fuel lines without a vapor line. I have been looking at inline tube pre bent lines. I have their brake lines installed and they worked out great. Inline tube only has a 1/4" return line for my application. Can I use that on the 5/16" return line from the sending unit. If not is there another company that offers fuel lines for my car. Both lines that Inline Tube offers are 3/8" feed and 1/4" return. They are for passenger side routing. Or do I have to purchase the 5/16" vapor line and use it as a return line. This line is for driver side mounting and would run through the crossmember to reach the passenger side. Do I need to purchase all 3 lines? What are my options, can someone please break this down for me? It's a carbureted V8 if that matters. I'm at a standstill right now and any help would be greatly appreciated. Thanks

joe_padavano

Return that incorrect sending unit and get the correct one with three lines. Feed line on the frame is 3/8", return is 1/4", and vapor is 5/16".

Olds64

The pic Joe posted is Dorman 692089. It should be available at your local auto parts store or online.