I have rebuilt C.V. joints for my 80 vanagon and in the process I tired to keep track of the individual joints, driver in, driver out, passenger in passenger out. There was some pitting in the races, but only in one direction of rotation. After assembly, keeping all parts in there old places and orientations, I thought that by rotating each shaft by 180 degrees, inside is now out and out goes inside that I could use the bearing surfaces that were not worn. A bit of thought and I realized that doing so would make no difference. To change the surfaces which wear I would have to switch drivers side shaft for the passenger side and visa versa. This should extend the life of the shafts a little.
Any agreement? Thanks for your thoughts