The transmission fluid capacity for a 1967 Chevy 2-speed Powerglide is approximately
4-5 quarts. However, this is an *approximate* figure. The exact amount needed will depend on whether you're just topping it off, performing a partial fill, or doing a complete transmission fluid and filter change. Always refer to your owner's manual for the most precise information or a reputable repair manual specific to your vehicle.
When doing a complete fluid change, you'll likely find you need closer to the upper end of that range, and you might even need slightly more. It's crucial to check the fluid level with the engine running and the transmission in Park (or Neutral, depending on your specific procedure) after the fill to avoid overfilling.
