Thread: Speedometer is off
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Old 02-18-2009, 03:27 PM
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Default Speedometer is off
OK, this is probably covered here but my "tremec speedometer" search didn't yield the answer.

My speedo at 55 is off by 8-9MPH (my handheld GPS had me going 63).

This is a Tremec TKO600 and the Shelby gauge.

I had it up on the lift the other day and didn't think to look at it. I'm guessing this is the gear driven. Does anyone have the magic forumla for the calculation for gear count (or am I looking at getting this adjusted with a computer tuner?)
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