I have had mine out before, made new bushings (with the help of my buddy Wade Musil - S/N 4280) back in 2014.
We even put in a zerk fitting on the bottom of the shaft housing.
My guess is that the shafts are in good shape, but I am cleaning up the back end, and working the brakes, so it seems like now is a good time to take a look at it...
Rocky