Service brake shaft bushings

[wrndln]

I am about ready to complete the rebuilding of the service brake shaft for my car. The shaft ends are built back up and dressed down to firmly fit the bushings. I am using the original style bushings that have an impregnated cloth like material inside them. My question is: Should I use some type of lubricant to make the bushings move more easily and provide a little protection from wear on the material - like a little grease?
Rusty Nelson