Hi, Before seing a '57 Imperial , let me know if you have some inputs about this odd problem: The car drives in R and in all positions !! My thought is that the cable is unhooked at trans. end and the manual valve stays in R position, i can't see other reason. I've rebuilt this trans 1 year ago and itsn't me who has reinstalled the trans. in the car. I'll see the car in somedays, fortunately itsn't very far from me; the mechanic doesn't want to touch or remove something, he's affraid of automatic transmission ... -- Philippe COURANT (Pau, France)- Webmaster des sites ACCF et C-I-F Imperial 1957 Crown convertible Buick 1996 Roadmaster wagon - American Car Club de France (ACCF) : http://www.accf.com - Chrysler Imperial France (C-I-F) : http://www.ifrance.com/c-i-f - Cadillac " Standard of Excellence " : http://www.ifrance.com/accf-cad - SportsCars : http://www.ifrance.com/accf-sprtcar