What model Morgan do you have Dave? My 1973 4/4 Salisbury axle was offset to one side about 1/2 an inch. The spring mounts were welded in that position on the axle. The transmission tunnel was centralised on the tube and the extra gap between the wheel and the chassis gave more room for the exhaust pipe. The wheel on the other side used to touch the inner wheel arch under hard cornering, but other than that it did not seem to have an adverse effect. Never knew if it was designed that way.
Hope you have avoided the floods. My daughter and family were marooned in a motorhome in the Rockies with roads closed and said a lot of Calgary was no go.