5.4 swapped in place of 4.6
http://www.filtranllc.com/products/
They state they are OEM tranny component suppliers to the auto mftrs. They may even supply Motorcraft with their tranny filters for some applications?
For over fifty years, Filtran LLC has supplied automatic transmission components to virtually every automotive manufacturer worldwide. Today, the range of our product includes screen, suction and pressure filter designs as well as advanced filtration systems.






