1. Specify the model: Are you interested in all 2-door Chevrolets ever made, or just a specific model like the Impala?
2. Specify the years: Production numbers varied greatly from year to year.
3. Consult production records: Even with specific models and years, finding exact production figures for *just* the 2-door versions can be difficult. Chevrolet's internal records may not be publicly accessible in that level of detail.
In short, while you could find production numbers for individual models and years from various sources (like automotive history websites and enthusiast clubs), a comprehensive total for all 2-door Chevrolets throughout history is not readily available.