How much automatic transmission fluid does a 2001 Chevy Silverado 2500 HD take?

just changed mine if your pan dept is 2'' 7/8 deep in the back typically 5-7 quarts of dex III add 4 or 5 quarts and check dipstick level to add more if needed not all trny fluid is empted when dropping pan goodluck any problems give napa or autozone a call they help