According to the 2004 Motorcraft Chemicals & Lubricant Catalog, I could use either:
Motorcraft PTFE Lubricant PN.............D2AZ-19590-A Spec..........ESB-M1C111-A Size...........1-lb.
or
Motorcraft PTFE Lubricant PN.............XG-8 Spec..........ESB-M1C111-B Size...........3-oz.
Features o Good general-purpose grease o Tough Teflon® coating provides nonstick surface o For use with driveshaft slip yokes; especially where grunt-type noise is experience o Useful in eliminating squeaks between plastic parts
but, none of the fellows at NAPA, Advance Auto or AutoZone can figure out what to sell me!
Steve