NEW TIRE SPEEDO CALIBRATION?

[nicodywill]

What is everyone using to re-calibrate their speedometer after changing to a non-stock tire size?
I recently added some and would like to know exactly how fast I'm going.

 

[Flounce]

I came on to post the same question. I haven't upgraded my 18x8 stock wheel/tire yet but wanted to make sure the speedometer could be recalibrated before I proceeded....

 

[Troop2865]

Rough Country has what you need to re-calibrate your speedometer for $179. I think there are other out there like Hypertech.

 

[Flounce]

I have a the Mopar Extended Warranty and prefer to speedometer calibration done by a dealer service department.

Do you know if they have figured out how to do this yet?

Thanks

 

[Troop2865]

Not that I know.

 

[Sinister17]

I talked to the service department last week about this and the service supervisor told me the only way to do this currently was to buy an aftermarket "tuner" and change the tire size through it. But to maintain the integrity or the warranty don't change anything else (especially anything to do with the engine).

 

[ExcursionDiesel]

The Edge Products Pulsar module (piggyback tuner) recalibrates for tires and axle changes. It also can remap the throttle and, on performane mode with 91 octane, adds Torque/HP. Any module that changes/tampers with the ECU can negatively impact the warranty.

 

[nicodywill]

I talked to the service department last week about this and the service supervisor told me the only way to do this currently was to buy an aftermarket "tuner" and change the tire size through it. But to maintain the integrity or the warranty don't change anything else (especially anything to do with the engine).

My dealer echoed this same message yesterday.

 

[nicodywill]

I went ahead and ordered the Rough Country speedometer calibration tool.
It should arrive on Monday and I'll update here after the install.

 

[PorBoy]

^^^. Good deal, but I thought they did not have one yet for the DT version ?

 

[Dmalonecentral]

I talked to the service department last week about this and the service supervisor told me the only way to do this currently was to buy an aftermarket "tuner" and change the tire size through it. But to maintain the integrity or the warranty don't change anything else (especially anything to do with the engine).

My dealer quoted me $410 dollars to recalibrate the speedometer which is upsetting since THEY put the lift on. The person I spoke with actually said I would be better off to shop it around to some off road shops. Might look into the Rough Country one.

Question for the group though, in theory aren’t you helping preserve the resale and potentially lower insurance rates since you are actually racking up less miles than you should be?


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[ExcursionDiesel]

Question for the group though, in theory aren’t you helping preserve the resale and potentially lower insurance rates since you are actually racking up less miles than you should be?

Longer warranty also!

 

[Dmalonecentral]

Longer warranty also!

Right! I guess I bought the 8 year 92,000 mile warranty.


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[ExcursionDiesel]

Right! I guess I bought the 8 year 92,000 mile warranty.


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Right! Make a sticker with corrected mph scale and stick it over the speedometer's scale. Lol!

 

[nicodywill]

^^^. Good deal, but I thought they did not have one yet for the DT version ?

After seeing this post I called rough country to confirm it would work on a 5th gen on Friday afternoon and they confirmed it would work.

 

[PorBoy]

^^^. Good deal as I didn’t want you buying something and it actually not be for our DT model.

 

[nicodywill]

I can confirm 100% the Rough Country product works on the 5th Gen just as advertised.

 

[Neurobit]

Yikes! $180 to recal the speedo? That's nuts.
I guess there are no other options, but still insanely expensive.

 

[Dmalonecentral]

Yikes! $180 to recal the speedo? That's nuts.

Dealer quoted me $410


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[Neurobit]

Dealer quoted me $410


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I remember back in the day, I had a 6" lift and 35"s on my 2000 super duty. I gave the Ford dealer tech $20 and he did it for me in a couple of minutes. Guess those days are gone...