Years ago Gasboy sold out to the Tokheim Pump Company. When Tokheim went bankrupt in 2003, I believe Gilbarco purchased the assets of Gasboy. Gilbarco is in North Carolina and if the parts are still available they should be able to help you.
In my Wilson literature I do have a 400 Series Sales brochure and a parts manual for the 400 Series. Email me if you are interested in a copy. firstname.lastname@example.org
Author, Gas Pump Identification book and Air Meter Identification book
Author, Gas Pump Identfication books 1st & 2nd Editions & Air Meter Identification books
We rebuild ECO air meters and sell parts.