John D,
There is a previous post that points out that the gear can be just tilted and the rollers are then only retained by the separator cage.
There is not a huge difference in the MGB design basics throughout the whole
family right back to the Alouette as you would expect, just bigger.
I have worked with an overhaul guy on AS350 MGB's and he used to pop the
bearing rollers out when we changed a bevel module for a quick look at the inner race.
AS 350 shown below - pretty much the same.