Sorry to disagree but look at the pictures below and you will see that the door latch assembly from a 63-67 will in fact work with a 62 striker mounted on the car. This is not true in reverse. A 62 door latch assembly is only compatible with a 62 striker. Also, the door latches have the same bolt pattern from 62-67 so a latch from these years will bolt into any doors from the same range of 62-67. The striker bolt pattern changed in 63 on the car so if you have a 62 car, you can only bolt up a 62 striker UNLESS you do like Lenny2 and modify the car. I believe the reason the 63 latch and striker was redesigned was so in an accident, the door was less likely to pop open.
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Top of photo above is a driver's side 62 latch and striker. Bottom of photo is a 63-67 latch and striker.
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62 latch is only compatible with the 62 striker on the left.
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63-67 latch works with either of these strikers.
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This is a 63-67 latch fully closed in a 62 striker.
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My 62 convertible with a 63-67 latch...
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Closes perfectly with the 62 striker. Any questions?