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Speedometer calibration

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Old Jun 11, 2003 | 04:44 PM
  #1  
PsychoBoy1964's Avatar
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Speedometer calibration

1999 F-250 - Installed 6" lift with 35" tires. Can my local ford dealership calibrate the speedometer to the large tires? Or is there some other way?
 
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Old Jun 11, 2003 | 09:14 PM
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Speedometer calibration

Can my local ford dealership calibrate the speedometer to the large tires?
Maybe. 35" is about the limit the dealer can recal. The other option is to get a superlift tru-speed.
 
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Old Jun 12, 2003 | 10:53 AM
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Speedometer calibration

Jet has a new plug in type and they said they could do my 38`s. Also Diablo can give you a custom program if you buy a predator.

MotoX
 
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Old Jun 12, 2003 | 04:56 PM
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Speedometer calibration

I have the 35x12.5R1 BFG Mud Terrain's and the rev's per mile at 45 MPH is 598. Can the dealer adjust that low? I've heard of problems with the V10's not being able to go lower than 600 I believe it was, but I've never heard anything about the PSD's. Anybody know what the limits are? I haven't mounted mine yet, but I'd like to know if I can get it set before I lift and put them on.

Thanks,
 
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Old Jun 12, 2003 | 09:17 PM
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Speedometer calibration

Revolutions per minute you mean? You have a six speed and in 1st gear you RPM`s are 598?

MotoX
 
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Old Jun 12, 2003 | 09:55 PM
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Speedometer calibration

601 is as low as the NGS will go.
 
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