Help with Gas tank

[SSDiv6]

Originally Posted by Bill Belden

Dave,
take the sending unit out and cut off the fuel lines on both sides, then drill it out for a bulkhead fitting either # 6 or # 8 depending what size line you want. Use steel tubing to replace the inside line, flare the end and secure it using a tube nut.

In lieu of steel tubing, I would recommend the use of aircraft aluminum tubing. Does not corrode, lighter and absorbs vibration and harmonics without breaking at the fitting.

[Dwight Southerland]

I have also used copper tubing bent to shape and soldered in place through the flange for the pickup tube. I believe GM solders the steel tubing in place from the factory. You can even solder the float sending unit onto the copper tube and have the stock fuel gauge work.