Should the door locks, trunk, and the glove box locks be keyed the same on a a 64 Cutlass?

 

Yes. IIRC, on my '64 one key operated everything.

 

Actually, no. The trunk and glovebox are separate from the door and ignition. The interesting thing about the 1935-1966 key blanks, however, is that both the octagonal (B10) and round (B11) blanks use the same blade. Only the shape of the head is different to differentiate between trunk and ignition keys. You can slide the ignition key into the trunk lock and vice-versa, which is not the case on the 1967-up cars where GM changed the lock configurations. You can also cut an octagonal blank to fit the trunk or a round blank to fit the ignition. It is also possible to rekey all the locks on the car to use one key if you want. My 1962 F85 wagon uses one key (tailgate is the same as the door/ignition), but sedans used a separate trunk key. This was so you could give the valet only the ignition key and not provide access to anything in your trunk. On a wagon, that really didn't matter.

 

Thanks guys....

I bought a set of locks for everything (they are the octagonal and round keys you described), and they gave me matching trunk and doors, with a separate glove box lock, and a separate ignition key, I did try them out and they do use the same keyway, I think Ill see if ye old local locksmith will rekey the glovebox to fit the door key.

 

Joe, I have a very clear memory of a '64 Cutlass 2-door hardtop that I purchased from the original owner in 1984 and being able to open the trunk with the ignition key. In fact, there was no secondary key -- only an identical spare. It stuck in my memory because up to that point every GM car I'd driven used separate keys. Is this some kind of weird anomaly?

 

Never owned a 64 but have owned two 65's and the ignition key could be removed with the ignition in run position. I always wondered why GM would do that.

 

Dunno, but it sure was handy in a day and age when theft wasn't a very big risk.

 

I have a '64 Cutlass. It uses one key for everything. Doors, ignition, trunk, and glove compartment. I don't know if someone switched it that way as I have only had the car for a year and a half. My key can also be removed while car is running.

 

i was also told 64 used the same key. I did recently have joe cut a key per a door lock code on a 64 cutlass convertible. It opened all locks. doors trunk, ignition and glove box door all original locks

my 65 that has all original locks use two key codes for doors and ignition and truck and glove box

 

One key works on my 64 Cutlass. I have owned 4 64 Cutlasses and all used 1 key..