Ronnie,

There is a different shaped plate on each side - inner fender to firewall filler panels:
http://www.classicparts.com/1947-54...-Panels/productinfo/37-791/#.V1dzIJMrKdE

This inner fender seal set contains foam seals that go around each plate:
http://www.classicparts.com/1947-54-Inner-Fender-Seals/productinfo/37-725/#.V1dzsJMrKdE

I think Denny Graham posted nice photos of these in-place. Maybe someone will find that post?

Tim
1954Advance-Design.com
1954 3106 Carryall Suburban
1954 3104 5-window pickup w/Hydra-Matic
The 216 and early 235 engines are not "splash oilers" -- this is a splash oiler.