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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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Thread Tools | Display Modes |
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#9
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Sorry forgot to mention I have the 4.6, but it sounds like the trans and torque converter are the weak spots for RPM's. I didn't know if the 4.6 liked to be wound up a little more then the 5.4's but no point in destroying a transmission for a few more RPM's
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