Layout and drill holes for the T-1204B Filler Neck Assy. After fitting all the fuel filler parts, we decided to use the new T-1204A top skin. When we took the fuel tank top skin out of it’s packing, we found the filler hole in the top tank skin already cut. We decided to use the new top skin and order a new T-1204 Fuel Flange.
Note: altho the instructions call for the T-1204B to sit on top of the T-1204A, it appears that the T-1204B flange should be in the tank itself.