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Old 12-04-2013, 12:44 AM
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Upgrading 18" to 20" OEM wheels

I have almost everything to swap the OEM 18" for OEM 20's on my Limited but I was wondering if this swap would affect the ride in anyway? do I have to flash the computer with the new tires/wheels size, so the tire pressure show accurately on EVIC?

any input would be appreciated, thanks guys!
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Old 12-04-2013, 12:51 AM
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Re: Upgrading 18" to 20" OEM wheels

youll be fine...swap the wheels/tires over and enjoy
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  #3  
Old 12-04-2013, 07:11 AM
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Re: Upgrading 18" to 20" OEM wheels

Ride maybe a little stiffer since you are going to a 50 series tire from a 60 series but will depend on the tire. The TPMSs should be picked up by your GC after about 10 minutes of driving or so. Or your tire store can reflash.
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Old 12-04-2013, 11:40 AM
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Re: Upgrading 18" to 20" OEM wheels

It'll ride a little firmer, always does when you go up in wheel size. If you're worried about it go test drive a Jeep with 20s. Make sure to match the suspension to yours (i.e. if you don't have QL, drive one with 20s but without QL, the Jeep rides better with the QL)
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Old 12-04-2013, 01:56 PM
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Re: Upgrading 18" to 20" OEM wheels

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Originally Posted by mjcedeno View Post
I have almost everything to swap the OEM 18" for OEM 20's on my Limited but I was wondering if this swap would affect the ride in anyway? do I have to flash the computer with the new tires/wheels size, so the tire pressure show accurately on EVIC?

any input would be appreciated, thanks guys!
On the 2014, there shouldn't be any reprogramming for TPMS required--at least for MOPAR OEM sensors. The tire/wheel size wouldn't affect the pressure display, it is a pressure sensor.

The ride will probably be a tad notably stiffer due to the lower aspect ratio, the OD is close enough to the same that the speedo will remain as inaccurate as it is on the 18s.
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Old 12-04-2013, 02:33 PM
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Re: Upgrading 18" to 20" OEM wheels

The ride will probably be a tad notably stiffer due to the lower aspect ratio, the OD is close enough to the same that the speedo will remain as inaccurate as it is on the 18s.[/QUOTE]

How inaccurate is the speedo? My GC on 18" is as accurate as the road side radar that tells you how fast you are going. If the speed limit is 55mph my speedo will register 55mph.
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Old 12-04-2013, 02:35 PM
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Re: Upgrading 18" to 20" OEM wheels

My speedo on the Jeep is very accurate. My Lexus reads 2MPH high, like every other Toyota/Lexus product I have ever owned.
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Old 12-04-2013, 04:12 PM
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Re: Upgrading 18" to 20" OEM wheels

I drove 2 almost identical 2013's before I bought mine. One had the 18's and the other had the 20's. I liked the 20's a lot better. Sportier handling, the one with the 18's felt a little spongy in comparison. Glad I have the 20's.
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Old 12-04-2013, 09:23 PM
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Quote:
Originally Posted by kbre View Post
I drove 2 almost identical 2013's before I bought mine. One had the 18's and the other had the 20's. I liked the 20's a lot better. Sportier handling, the one with the 18's felt a little spongy in comparison. Glad I have the 20's.
Me too! Drove two similar 2012's with 18's and 20's. Totally agree on the ride and the look is so much better with the 20's IMHO.
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Old 12-04-2013, 09:34 PM
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Thank you guys for all your advices and personal experiences I think I will test drive a 20" JGC tomorrow and compare the ride before I swap the wheels.
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Old 12-04-2013, 11:27 PM
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Re: Upgrading 18" to 20" OEM wheels

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Originally Posted by Krisw123 View Post
Me too! Drove two similar 2012's with 18's and 20's. Totally agree on the ride and the look is so much better with the 20's IMHO.
No doubt on the look. The only ones with 20s that I've driven have had QL. They rode great, but its hard to say what role QL had in that ride.
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