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4l80e shifting ?
has anyone had any problems with the 4l80e shifting?....for whatever the reason my trans will not stay in first gear for anymore the a few seconds...whenever I take off it goes the length of the truck or so and shifts into second gear. even when I try to manually shift it same thing...doing a burnout it shifts into second after a few turns of the tires...is it something in the tune?..the pcm was reflashed for 3:42 gears and 26" tires. I have the right gears now but my tires are 28".....it still as the stock van converter, and a TCI shift kit...and it shifts realy hard in all gears, even fourth.
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