Help with Speedometer adjustment.

Discussion in 'Trucks [ Eighteen Wheelers ]' started by mackdaknyfe, May 9, 2010.

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  1. North Idaho

    North Idaho Bobtail Member

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    Hello, Can you help with speedometer dip switch settings?
    1999 Peterbilt 379, Tires - Toyo M506Z Off Road, Size - 11R24.5, Inflated Dia 44.3, Rear End Ratio 3.58,
     
    North Idaho, Feb 18, 2020
    #52
  2. x1Heavy

    x1Heavy Road Train Member

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    FFE ran 63 on governor but programmed their speedos to show 65 to soothe ruffled feathers, and wonder why tripplanning was off by 10 minutes late to appt. When I bought a GPS which revealed actual 63 I took tractor plus screen shot evidence to shop at Lancaster to have the speedometer recalibrated to be correct 63.

    They told me hush, don't worry about that. Get going yer late already on the next load.

    Reprogramming? HA not happening.
     
    x1Heavy, Feb 18, 2020
    #52
  3. Ccennals

    Ccennals Bobtail Member

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    Ccennals, Nov 23, 2020
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  4. Ccennals

    Ccennals Bobtail Member

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    I have a 2001 Freightliner C15 cat 13 speed put a new speedometer in what's the dip code for it. Also add 373 rear 11R 24.5 tires
     
    Ccennals, Nov 23, 2020
    #54
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