4L60 2nd gear shudder
If you're going to roll race at highway speeds, this is one of the issues that will come up. The best way to protect that sprag from slipping is to move the shifter to the 3 position, then go to WOT. This will bring on the overruning clutch which in turn will take the load off of the sprag. However, that overruning clutch is about 5 inches in diameter and there are only 2 clutch discs. Just an fyi...
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