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Discussion Starter · #1 · (Edited)
i need to know what you guys reprogrammed your speedo's at. i have mine set to 315-70-17 right now and i got pulled over this morning for doing 76 in a 65. i wouldnt have thought that it was that far off and it didnt feel like i was going that fast. it also didnt seem like i was catching the other cars that quickly. so if you guys could just kind of give me a clue as to what you guys are running for correction numbers i would be greatfull.
 

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I have used a GPS in my truck to verify the speedo and it was spot on with using the predator at 315-70-17. Make sure that you have the correct stock tire size programmed in first. Stock tire size should be 245/75/16. Also, make sure the gear ratio is correct in the predator at 3:73.
 
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