I believe that there are two different headlight bezels for 1968, and that they do differ in size. I first discovered this when a body shop was repairing the front end of an early 68 after a collision with a dump truck.
The shop got a set of headlight assemblies from a 69, and they did not fit the opening in the fiberglass, which actually had not been damaged too much. I started looking and measuring the headlight bezels of the 68s that I ran across at shows, swap meets, etc. Sure enough, there was a difference in sizes. If my memory serves, early cars had bigger bezels than later cars.
My theory on the change (without any hard evidence) is that the bigger opening in the front fiberglass was determined to be a weakness. Making the opening smaller provided more actual fiberglass between the headlight opening and the hood opening.
Of course, I could have all of this backwards. The only thing I can say for certain is that there are at least two different sizes for the headlight bezels on 68 Vettes.
Hope this helps.
The shop got a set of headlight assemblies from a 69, and they did not fit the opening in the fiberglass, which actually had not been damaged too much. I started looking and measuring the headlight bezels of the 68s that I ran across at shows, swap meets, etc. Sure enough, there was a difference in sizes. If my memory serves, early cars had bigger bezels than later cars.
My theory on the change (without any hard evidence) is that the bigger opening in the front fiberglass was determined to be a weakness. Making the opening smaller provided more actual fiberglass between the headlight opening and the hood opening.
Of course, I could have all of this backwards. The only thing I can say for certain is that there are at least two different sizes for the headlight bezels on 68 Vettes.
Hope this helps.
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