1960 Dodge Seneca Wagon

The tank is in the side between outer fender and inside of rear cargo area. the sender goes in with a O ring and twist ring lock. It goes in the upper side of the tank and the tank fills from the top near the drivers side of the car at the rear window of the wagon.I expect if the tank mounts the same in the 61 the sender is essentially the same. You can call me at 302 545 4875