Input bearing renewal

I've done 100's of 833's and it's not worth the effort as mentioned above.Considering the time it takes to just knock it apart and just change the main drive gear brg and put it back together would be shorter than farting around trying to fish the brg out the front and beat the new brg back in without damaging the syncro or loosing the any of the 16 roller brgs in the case...Not A Good Idea IMHO