I had the speedo gear installed in my auto, it's not accurate though. I am off by about 5MPH from about 50 and above. I know it's not supposed to be perfect. For my car the speedo gear for 3.73 and 4.10 are the same number of splines, so there's a marginal difference in real speed readings.
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// 1998 GT-Steeda Conversion \\ -- Sold
// Now own 2001 F-150 SuperCrew 5.4L \\
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