your ford key will have a no. like T142321 and you will see numbers stamped on your small discs that came out of the barrel,these are inserted in the correct order into the cylinder to match your key,you will have to first get your key no. and would advise to take the kit to a person who has built these up as you will probably need a new locking ring for assembly to hold everything in place,some locks are built up with these discs facing up and some down so unless you noted how the lock came apart you could be there for a long time trying fathom out your problem
cdc, January 2012