any one know what id have to do to recalibrate the speedo in a 87 f250hd aftr going from 30.5" tires to 33's? any helps apprecited. thanks
speedo recalibration
Started by
blue
, Apr 10 2007 11:18 PM
2 replies to this topic
#3
FreddiefiredogX4
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F-Series Newbie
Posted 16 October 2007 - 01:03 AM
Well, I went down to the Ford place and asked them what I could do with my 33's. They matched up the best drive gear for the speedo cable and tire size and it was still off 10% I reckon cause 82 in a 70 is expensive. I was on 75. so watch it on the road. Offroad I don't have that problem.
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