I'm looking to re-calibrate speedo

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Joined
Oct 7, 2021
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Location
WI
Ram Year
2016
Engine
3.6L
I'm wondering if anyone in NE Wisconsin has a tool for re-calibrating my 2016 1500 speedo? I went from 265/70-17's to 285/70-17's, and would like to get it corrected.

Thanks!
 

danielmid

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Location
Southeast WI
Ram Year
2015 Sport 4x4
Engine
Hemi 5.7
 

jawzs2

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^^^ yep, AlfaOBD - DIY solution

 

MoparFin

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PA
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3.6
I used OBD JScan for tire size and a bunch of other things. Just like the AlphaOBD. Bought a cable off Amazon that was shown on the OBS JScan website and used that.
 

flinkpoyd01

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Utah
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2014
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Hemi 5.7
Question: will any of these options update the analog speedometer as well as the digital EVIC readout? My truck has a consistent variance between the two and at an actual (GPS) speed of 75, my digital EVIC will read 75 but the analog gauge reads close to 70. I was told this is due to having the cluster swapped when the truck was imported to the states (it was originally a canadian truck) as it originally had a predominantly KPH speedo. Don't know that I totally buy that.
 
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