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So, thst hasn't seemed to cause me or anyone I know any problems in the last 40 years. Beside that the rear wheels don't do that with the wheels on the ground and shifting at twice that RPM.



Guys, John has told you why its a problem and that its not a big deal, but will lead to the trans wearing out faster. He explained it well and backs it up with references to the exact page in a book that most of us have. How does anybody know if manual sifting shortened the life of their trans or not? There is no standard to compare it to, some stock trans trans go 140K miles before needing to rebuild, some go 60K. This is kind of like fighting over how many angels can dance on the head of a pin. John's answers are well thought out and back-up, he's only sharing his knowledge.