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-   -   Going from 17s to 20s (

v6guy 08-10-2013 08:40 PM

Going from 17s to 20s
So I currently have stock 17s with 265 70 17s on them. I found a set of dodge ram 20s with 275 60 20s. Will this mess up my gearing or will I have to get my computer reprogrammed or will it all be alright. Thanx

brandonjansen 08-10-2013 08:48 PM

Your speedo/odometer will be out slightly because of the increased tire size. But that's it. Other than that you'll be good to go!

v6guy 08-10-2013 08:49 PM

So it wont mess up my gearing

brandonjansen 08-10-2013 09:27 PM

It will change your overall gear ratio slightly but shouldn't be very much. Since you're staying with a stock wheel/tire combo you're not getting much more weight, just size.

Your dealership should be able to reprogram your computer for the larger tires as well to correct your odometer and speedo.

Swaggerville Ram 08-10-2013 10:29 PM

I've had oversize tires for about 75000 kms. No reprogram, no problems. You're fine

RogerRamJet 08-11-2013 01:47 AM

You'll loose a little bit in gas mileage as well. Gonna take a little more umph to get those 20's turning.

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