Installation example using the popular Holley In-Tank Fuel Pump Retrofit Module, our custom fuel sending unit, and insulator pad set. 
Below is an example of the gasket to mounting pad area using one of the largest in-tank fuel hanger module gaskets available on the market along with a standard fuel sender gasket. The OD of the large gasket is 5.75" and the OD of the sender gasket is 2.50". This is the preferable location for both units so that the fuel pump pulls from the back of the tank.
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