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2004 to 2008 F-150 and Mark-LT 4.2L, 4.6L and 5.4L equipped F-150s and Mark-LTs. |
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#1
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I was wondering if the more experienced could help answer a question....i have a custom tune on a sct and my speedometer is off..will it hurt to change the size and or the shift firmness or should i leave these alone?
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#2
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to fix the speedometer you don't need to do anything with shift firmness. changing the size of your tire will fix the speedo issue. if you think your shifts are hard or soft then you can change the firmness, but do it in little increments, no more than + - 1 at a time.
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#3
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__________________
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