The inverted flare nuts are available in at least 2 lengths, you first need to know what the line diameter is, typically 3/16", 1/4", 5/16". that diameter will dictate the flare nut size and the SAE thread size. Stop at your FLAPS and buy a couple of new long nuts.
1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy
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