View single post by DonBurns
 Posted: 03-23-2018 04:16 pm
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DonBurns

 

Joined: 09-18-2015
Location: Fullerton, California USA
Posts: 149
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 Sounds like there are many possible causes, so this is just what it was for me. On my first JH in 1979, my 4-speed was jumping out of second. I had a shop rebuild it, and the cause turned out to be a bearing that was missing a needle (might have been a ball, but my memory was that the bearing was a needle bearing). This allowed a slight deflection in the shaft. It turned out that the repair of the bearing was all the tranny needed.