Making Keys For The ’60 -‘66 Chevy Trucks

[LockDoc]

Originally Posted by oem4me

Question for LockDoc: I've heard rumor that GM had far fewer codes for keys than one might expect. Say, like a couple hundred different keys TOTAL, for ALL makes and models. Thousands and thousands of vehicles built every year, and not anywhere near the same number when talking key differentiation.
Is this true? Can you tell by your key code book how many actual separate codes existed for our vehicles of that era?

For all GM vehicles from 1935 through 1966 there were 1499 different keys. For 1967 up there were about the same except that there were 4 different ignition keyways ("A", "C", "E", & "J") which effectively gave 5996 different keys for the ignitions.

LockDoc

[oem4me]

Originally Posted by LockDoc

For all GM vehicles from 1935 through 1966 there were 1499 different keys. For 1967 up there were about the same except that there were 4 different ignition keyways ("A", "C", "E", & "J") which effectively gave 5996 different keys for the ignitions.

LockDoc

Well imagine that ...an actual answer to something I've wondered about for many years. Very cool. Thanks!

[MikeN]

My uncle started going through all the keys he has saved from the Chevy's he has owned over the years, and trying them in the ignition of my 64 C10. I thought he was crazy. Sure enough, the somewhat larger square-headed key from a 76 Impala he used to own fits perfectly in my ignition, and starts the truck easily.