Oil holes in lay gear assembly

[Peter Arnold]

I had to replace the worn 1st motion shaft bearing and the 3rd motion shaft bearing in the four speed synchro gearbox for my 1936 Tourer. The gearing and the synchro cones look to be in good nick as does the lay shaft assembly. On further inspection of the layshaft assembly I notice that only one of the three oil holes has been drilled through. There is no discernible wear in the bushes or on the shaft so it would appear to have had reasonable lubrication. My question is whether I should drill the other holes.