[TR] Alternatives to cluster shaft needle bearings?

[TR3driver at ca.rr.com (Randall)]

> Additionally, a longer bearing can be used on both the front 
> and rear of the layshaft to provide more support. This 
> replacement is .995" long and has an outer shell. It's not 
> open as originally supplied by Triumph in the later cars. 
> This "shell" can be used to advantage in saving a cluster 
> gear that's been damaged by the open needle bearing 
> configuration: press it in with a bit of Loctite Stud and 
> Bearing Mount.

Doesn't the cluster gear also have to be ground to diameter before fitting
the longer bearing?

-- Randall