Forgot this question was over 1st gear dentents, that was resolved by turning the gear upside down, propping thr hub sufficiently that allowed the 3 denents to just be expised, i then used a large jubilee clip to squeeze the 3 balls at the same time, once squeezed i removed the prop and then just pressed the gear which slid down the hub and pushed the jubilee clip out the way. Simple when you figure it out.
The comment above was securing the 88 bearings in place in the cluster gear and getting it back in the box without dislodging the bearings when the shaft is reinstalled. The Vaseline and dowel was the only way to do this first time. It was more difficult to keep the thrust washers in place.
Still got to finish it off as I've only half put the main shaft back together