What are the dimensions of FT3004B?

Product Description: 1955-56 Chevrolet Station Wagon, Except 9-Passenger; 17 Gallon Fuel Tank; Niterne Steel; GM47A

Measurements:

Filler Hole: 2-1/2" diameter

Sending Unit Hole: 1-1/2" diameter

TF700006_V2

TF700006_V3