It was easy enough pulling this gearbox apart but now I have to get the old bearings off and fit the new ones.
I have come to the conclusion that pullers won't work unless they are special tools, for the mains, though pullers may get the smaller layshaft bearings off. But the big ones have too much shaft ahead of them and the one on the main cluster has no room for puller jaws to engage around.
Thus I am inclined to the view that the angle grinder is the right tool to remove them.
Then I am thinking that a few hours in the freezer for the shafts and a short time in the oven at 150C for the bearings would be the best way to assemble them.
Your thoughts sought here please gurus.