833 aluminum overdrive reinforcement

I won't dispute the guy repaired a transmission that was on its way out
in that article. But I have never seen a transmission that needs this repair myself.
I have a direct connection aluminum case that was made with the steel bushing so I would go along with the fact that Chrysler deemed the bushing needed in a racing application.
Not so with the production line aluminum cases. No bushing.
If a countershaft ever does get hammered over away from the main shaft enough for a tooth to jump it would be over in a split second. Instant broken case iron or aluminum.