[Early_S_Man]

I submit that the white lithium grease used at the factory is inadequate for long term use. If cleaned and re-lubed every couple of years -- it might be OK!

I use Valvoline SynPower Synthetic Grease with moly #985 or #986.

Here are some pertinent threads on refurbing 915 shifters:

http://forums.pelicanparts.com/showthread.php?threadid=182774&highlight=shim+915+shifter

http://forums.pelicanparts.com/showthread.php?threadid=54587&highlight=915+shim+shifter

http://www.seinesystems.com/ShiftHousBluPrint.htm