The wheel bolt pattern for a 1957 Pontiac depends on the *specific model* of Pontiac. Pontiac offered several models that year, and they didn't all use the same bolt pattern. You'll need to specify the exact model (e.g., Chieftain, Star Chief, Bonneville, etc.) to get the correct answer. Even within a model, there might be variations depending on options.
To find the correct bolt pattern, you should consult a 1957 Pontiac repair manual specific to your model or check online resources dedicated to classic car parts and specifications. These resources often have detailed information on the wheel and tire specifications for different years and models.
