If you have the shop manual, there's a passage on maintenance in the
Ultramatic Drive section that tells you exactly how to drain the converter.
There's nothing about lining up any flywheel/converter holes. However, you do have rotate the flywheel to be able to drain the converter completely. In the absence of a flyhweel turning tool, some might be tempted to "bump" the starter switch accomplish that, but if you remove all the spark plugs from the engine, you'll be able to turn the crank by hand, using the cooling fan - provided the belt has sufficient grip.
WRT fluid, have you looked in our
Answers to Frequently Asked Questions section? There's a topic that addresses what fluid to use.
Seek and ye shall find.This Post was from: https://packardinfo.com/xoops/html/modules/newbb/viewtopic.php?post_id=88627