<VV> FC Axle Splines

[hallgrenn at aol.com]

For a few years now I've been wondering what harm there would be in adding some grease to the splines (after thoroughly cleaning them) when they start to "work" in what is supposed to be a press-fit situation.  I can see the bright red rust that shows me the splines are shifting and wearing against one another so the press fit is no longer there.  The bolt keeps the two parts captive so what would be the down side to a little grease to reduce the spline wear?

Bob