I was always under the impression that it was a year specific thing. The GM cars with the switch on the dash (up to 68) always came out. In 69 they went to the steering column (and still came out) and in 70+ they all stayed in.
I had a 69 Camaro back in 79, the key came out of it. My brother had on a few years later and when we replaced the switch in it we were told that you couldn't get the 69 style anymore, that all of the replacements were to be the 70+ type.
I just assumed that the trucks were the same....
|