[Rich 5150 69]

The only way to run a return line in a stock tank is to remove your sending unit, get yourself about a four foot piece of steel line, bend it using a tubing bender to follow the contour of the out going line, drill a hole the size of your tube in the sending unit plate and insert the line so that it goes at least half way down into the tank, solder it to the the sending unit plate and reinstall sending unit to tank. Secure line to floor with a line clamp before exiting to the underside to prevent movement or your soldered joint may break.