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1999 to 2003 7.3L Power Stroke Diesel 7.3L Power Stroke Diesel equipped Super Duty and Excursion. |
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Trans hard shift question
I recently installed my FU and when I am in 80hp or 100hp shifting from 1st to second my trans shifts VERY hard but only during that transition. This only happens when I am accelerating pretty good. All the rest of the shifts are incredibly smooth. Is this normal?
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