What lube for slip yolk?
 

What should I use to lube my slip yolk? I'm thinking wheel bearing grease.

Absolutely correct.

Thank you, I will begin the task with confidence knowing I am doing it right instead of guessing.

Here's another possiblity:

https://www.ford-trucks.com/forums/s...d.php?t=266696

In addition, teflon-based greases are also recommended highly by many Ford Techs for lubing slip yokes.

Sta-Lube makes an extreme-pressure moly grease suitable for slip yoke splines.

Steve