Transmission fluid quantity

You will need a special funnel and about 15.5 pints. To start,
put 4pts in and then check for leaks.
Put 6 more pints in and check for leaks.Start it up in neutral and check for leaks;then
add 4.5 more pints, and check for leaks.
Jump in, apply the brakes, and put her into reverse at normal idle speed. Then thru each of the other gears hesitating for a few seconds in each. Back to neutral and let her idle for about 15 minutes. Then check for leaks. Finally a short roadtest to warm her up and then check the fluid level. Top up as required.
Add on the stick means add 1 pint.
Go for a drive, and when you get back,check for leaks.lol
Keep your eye on the fluid level for the next few weeks.

If it seems like I'm harping on checking for leaks, it's cuz I am. I hate cleaning up oil spills and at $5.50 a liter up here, I cannot afford to waste those. A liter is 1.14 qt US, so to lose say just 7 liters is near $55.00C; including taxes and delivery costs.