Looking for 1951 Lincoln Cosmopolitan parts and wishing for a place to download a free repair manual?

LOL, Steven Your a newby all right. in those days there were no specific manuals. mechanics in shops had a huge book that covered almost every car model made in the states excluding trucks. it was made by motors I believe but not positive. you can however find these often at the local library. I found it was reasonable to go there find the info I needed and simply use the copy machine to print me that info. Now as to your part needs. you may be able to have the tumblers pulled out of the original switch and a new set installed by a lock smith! the tumbler assy is available with a key (ford)