The existing axle is so much larger than the one meant for the wheels that I think bushing the axle to fit the hole in the strut would be difficult. It would take at least two brass tube thicknesses, and maybe three.

The hubs seem to be pretty hard aluminum, but what I'm most worried about is the aluminum hub galling and binding on the steel shaft. If they wear some, I think it would be easier to drill out the hubs just a bit more and bush them to the shaft with a brass tube, but I don't want to do that unless it is really necessary.

I think I'll try it this way, keep them well greased up (as opposed to my normal "if it ain't broke, don't take it apart" maintenance scheme ), and see what happens...

Bob