Glove Box Key

pontiacgp

blank
Mar 31, 2006
29,414
113
Kitchener, Ontario
I changed the glove box in my GP yesterday and was going to change the lock but I thought why not try my key on the "new" lock and it worked. Was that a fluke or do all door keys work in any glove box lock... :popcorn:
 

spidereyes455

G-Body Guru
Mar 6, 2013
586
93
Northeastern PA
I think you just got lucky.
 
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rfpowerdude

Master Mechanic
Jul 15, 2013
292
93
Palm Bay, Fla
Probably worn out. Meaning, it will take any key in that slot and open up...
 

81cutlass

Comic Book Super Hero
Feb 16, 2009
2,870
113
Western MN
I thought GM only had 11 key cuts or something until the late 90's.
 
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Ribbedroof

Comic Book Super Hero
Supporting Member
Jan 4, 2009
3,758
113
Wellston, OK
Key blanks (specifically the slot in them) changed each year. If you look at original GM keys, there is a small letter on it which tells you which style it is.

I had a chat with an old-timer locksmith a few months back when I was fixing the locks on the coupe. He said (if I recall correctly) that they repeated every 4 years. My coupe had 1 door key (which actually would only operate 1 door lock), and 3 decklid keys (decklid swap)...I pulled all the locks out of a donor car sedan thinking I'd change them, but the coupe and sedan door lock cylinders have different shafts where the lever goes on. Long story short, he custom -milled some keys to work with my combination of 81 and 82 cylinders.

So, yep, you got lucky
 

pontiacgp

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Thread starter
Mar 31, 2006
29,414
113
Kitchener, Ontario
sorry guys but the key wasn't actually locking it, the latch was stuck and key was just turning the knob, not locking it... :doh:


 

69hurstolds

Comic Book Super Hero
Supporting Member
Jan 2, 2006
4,672
113
The 4 year thing worked until the official G-body era. Then they CHANGED them every 4 years starting in 1983. Friggin stupid.

Here's the letter coding for the years, ignition key first letter/door and console and-or glovebox key second letter...

1968 - (C, D)
1969 - (E, H)
1970 - (J, K)
1971 - (A, B)
1972 - (C, D)
1973 - (E, H)
1974 - (J, K)
1975 - (A, B)
1976 - (C, D)
1977 - (E, H)
1978 - (J, K)
1979 - (A, B)
1980 - (C, D)
1981 - (E, H)
1982 - (J, K)
1983 to 1986 - (A, B)
1987 to 1990 - (C, D)
1991 to 1994 - (E, H)
 
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