tclederman, if that tank is mounted in a panel it is of the one ton configuration. That is a larger tank and it is different than the 1/2 ton models. The 47/8 truck tank has slight differences and the fill tube is shorter and at a different angle than the panel/suburban. The gauge sending unit is mounted in the center top. I think the 1/2 ton tanks are around 13 gallons and the 1 ton tanks are about 18 gallons.
JC has the exclusive rights on the tanks, he was the one who had them made. I recently had an opportunity to see several tanks side by side and noted the differences, I wish I took pictures.
