I didn't see the earlier post on it, but David is right, I'm sure your looking for:
Swith your ford one from the FL-1A to the FL-299
you can also use any of these other brands:
AC PF42
Fram PH977A
Wix 51773
Purolater R17
Any of these will move your capacity from 4.5 to 5.0 quarts.