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readingbabelfish 04-14-2011 08:07 AM

New tires
I am contemplating going with 265/70/17 tires. If I do, do I need to get that same size spare for under the truck, or can I just use the stock size spare for emergency only? Also, will I have to modify my speedometer since the new tires are bigger than the old ones?

jdcollins86 04-14-2011 12:04 PM

Re: New tires
yes and yes

lll2for3lll 04-14-2011 12:37 PM

Re: New tires
It's no big deal. Mine is 5mph off but you get use to it.

jeff05wk 04-14-2011 02:02 PM

Re: New tires
The stock size will be fine as a spare for emergency use only. As long as you don't keep it on there for a long period of time when you have a flat, it isn't going to hurt anything.

To fix yourr mph difference with the new larger tires, just goto your local Jeep dealer and have them do it, or buy a flashpaq from superchips.

readingbabelfish 04-14-2011 09:29 PM

Re: New tires
Ok cool! Thank you for the replies! Any ideas on how thick the wheel spacers need to be?

jdcollins86 04-14-2011 10:29 PM

Re: New tires
your planing to lift right? i would get spydertrax 1.5" they run about 100$ for 2 of them.
they are a hubsentric spacer so the sit on the hub compared to other brands that rest on the lugs..

readingbabelfish 04-14-2011 11:00 PM

Re: New tires
Yeah, those are the ones I'm looking to get. If I go with the bigger tires will my traction control system be messed up, or the computer since its programmed for smaller tires with more revs?

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