FE,FC,FB,EK SEDAN - The filler necks are slightly longer on the FB/EK sedans- but this makes no difference when installing this tank - as you cut off your old filler neck with a hacksaw to suit. The rubber hose as supplied allows for any variations between cars and tanks. As these tanks slid in from the top the brass fuel fitting has on the side of the tank to be removed first. You will have worked this out after trying to remove your old tank!