2021 Wrangler Unlimited Sport going from stock 245/75/17 wheels to Stock Saharra 255/70/18, speedom issues?

jmtrio

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First Name
Nate
Joined
Mar 21, 2021
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Location
Illinois
Vehicle(s)
2021 Jeep Wrangler Unlimited Sport
Long story short I'm looking to upgrade my wheels up a half inch, and according to tacoma world there will be about a 1/2mph to 1.5mph change in my speedometer. I called a few Jeep dealers and they told me there was no way they could re calibrate it for me unless it was a 33" or up.
So my question is does anyone know of a way?
And
Will it affect my gear shift point and performance in any way? Or create unnecessary wear and tear?
Thanks!
 
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