What is the capacity of a 4L60 transmission with deep pan in 1999 Chevy Silverado?

The capacity of a 4L60E transmission in a 1999 Chevy Silverado with a deep pan is approximately 8-9 quarts. This is significantly more than the standard pan capacity of around 5-6 quarts. The exact amount can vary slightly depending on the specific deep pan used and how much is left in the torque converter. Always refer to the deep pan manufacturer's instructions for the most accurate fill amount.