I got a new little fuel filter that screws into my Rochester Monojet carb. It's a Duralast FF1204DL and has a compressible metal ring for a gasket. It came with 2 black rubber parts which seem impossible to use with this filter. They have 2 different diameter posts with no holes in the posts! If I tried to use one as a gasket, no fuel would flow through it.

Does anyone know what these are for? What am I missing? Or is a worker in China messing with me?

Thanks.
Attachments
Fuel Filter 1.jpg (24.42 KB, 92 downloads)
Fuel Filter 2.jpg (22.12 KB, 90 downloads)

1948 3/4-Ton 5-Window Flatbed Chevrolet

34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.