Thread: What is my speed? Got 3 readings!
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Old Mon, February 1st, 2010, 09:41 AM
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Question What is my speed? Got 3 readings!
Okay I have F-150 with aftermarket rims/tires, I need to know my correct speed. I havent done any changes to my gryphon and the speeds I get:

35 on grayphon
40 on the gauge
38 on garmin navi

which one should I use to align the rest with?