Thanks Red!
-PC
UPDATE:
For those of you who have lost your door key (at least on a 1978 Vette) you will have to do no less than REMOVE the lock from a door (acutally, gmjunkie's got a trick to make new keys, but I lack the skill!). It's either that or take the car to a locksmith who'll charge you a pretty penny to pull the lock themselves; for me, I'd rather do the work myself and trust the panels and such are handled correctly. There are some great threads on this forum that will help you accomplish this, from panel pull to lock removal and back again.
The problem with trying to use the glove box locks on a '78 is that they only have 4 of the 6 wafers (or tumblers) that the door key needs to fully engage and unlock your door. Therefore, the glove box lock will not work as a template for the doors. I looked and looked and found no codes on the locks themselves. I ended up removing the glove box lock and, then the rear compartment lock, and lastly the door lock (which is all the locksmith needed). Some earlier Vettes probably have the codes printed on the glove box locks, but not on my '78.
The trickiest parts of the removal were removing the remote side mirror control toggle (small allen set screw), and the various tools/parts that attempt to go AWOL to the dark unkown of the bottom of your door frame. Strategically stuffing an old rag below your work space in the door will prevent alot of wasted time fishing out lost bits and pieces. Also, a couple long needle nose pliers or some hemostats are super helpful- unless you have the hands of a racoon.
I was happy to pull the driver's side lock as I had to make an adjustment to an hornery door handle anyway. Good Luck!
Rich