we are trying to hook up the gas tank in this 58 project. as it doesn't have a return line we only need the main line. GM built these tanks with a female flare recessed into the tank. this new one is faithfully reproduction of it. we were able to get the old slug out of the bad tank but it's been damaged by over tighten it. that's there fix for the dripping line. lots of solder and brass. we would like to avoid doing that. any one have a source for this double male spacers? or are they slugs? my locale source is unaware of any thing out there.