I have another retrofit neutral switch for 55 56 and 57 Fordomatic equipped cars EXCEPT T-Bird.Interchanges with existing switch and no changes needed  to wiring terminals.Operates backup lites.Will start the car in both Park and Neutral.I have one on mine and find it much more convenient.This is a NOS Ford switch new unused.$55.00.Mailing to USA-$8.00 Canada-$12.00 Australia and many other countries-$13.00.I have Paypal for easy payment .I have one only right now.Email me at oldcarmark@hotmail.com. Thanks!