Mine took just shy of 8 quarts with a pan drop nd replacing both the remote filter and the filter int he pan. Factory service manual calls for 7.5 quarts to start, then start the truck, move the gear selector through all the gears, let it get up to operating temp, check it again, and add as necessary. Only add about 1/2 pint at a time, as once you can see fluid on the stick a little fluid makes a big difference in the level.