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Old 11-17-2013, 06:51 PM
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Question R18 Spare Tire with R20 Tires Installed

I have a 2014 JGC Limited with the optional 20"x8" Overland rims as well as the optional tow package that includes a full size spare. The installed tires are P265/50R20 and the spare is P245/65R18. Is the R18 the correct full size spare that comes with the installed 20" tires/rims? The sales person indicated this is the case, and supposedly called someone to confirm. I'd like to get other Jeep owners' input who have the same options. Thanks!
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Old 11-17-2013, 08:15 PM
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Re: R18 Spare Tire with R20 Tires Installed

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Originally Posted by JeffR View Post
I have a 2014 JGC Limited with the optional 20"x8" Overland rims as well as the optional tow package that includes a full size spare. The installed tires are P265/50R20 and the spare is P245/65R18. Is the R18 the correct full size spare that comes with the installed 20" tires/rims? The sales person indicated this is the case, and supposedly called someone to confirm. I'd like to get other Jeep owners' input who have the same options. Thanks!
Yes It is the same Diameter tire. the spare is actually .11" larger than your stock tire I don't believe the 20" rims fit in the spare tire well.
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Old 11-20-2013, 09:56 PM
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Re: R18 Spare Tire with R20 Tires Installed

Thank you.
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Old 02-01-2014, 03:40 PM
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Re: R18 Spare Tire with R20 Tires Installed

Actually the stock 20" do fit in the spare tire well. But you need to reverse the rim to permit the lid to close. This requires a longer spare tire hold down bolt and you need to warp the jack and store it under the tire. It works out nice!
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Old 02-01-2014, 05:35 PM
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Re: R18 Spare Tire with R20 Tires Installed

Here is a pic of the stock wheel and tire in the spare of my GC. Lid closes and everything looks like factory.
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File Type: jpg DSCN0687.JPG (317.6 KB, 28 views)
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Old 02-15-2014, 09:48 AM
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Re: R18 Spare Tire with R20 Tires Installed

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Originally Posted by snoball View Post
Actually the stock 20" do fit in the spare tire well. But you need to reverse the rim to permit the lid to close. This requires a longer spare tire hold down bolt and you need to warp the jack and store it under the tire. It works out nice!
I want to fit a 265/50r 20 in the spare tire area. I'm not sure what you mean by reversing the trim. Do you have pics of how to do that or an explanation or how it's done? Also what do you mean by "warp" the jack? And where did you get a longer spare tire hold down bolt?
I have a 2014 Limited.
Thank you,
HT
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Old 02-15-2014, 12:27 PM
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Re: R18 Spare Tire with R20 Tires Installed

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Originally Posted by redrockv8 View Post
I want to fit a 265/50r 20 in the spare tire area. I'm not sure what you mean by reversing the trim. Do you have pics of how to do that or an explanation or how it's done? Also what do you mean by "warp" the jack? And where did you get a longer spare tire hold down bolt?
I have a 2014 Limited.
Thank you,
HT
Sorry redrockv8....I could not see where to edit the post to correct "warp" to WRAP. I used a heavy cloth bag to enclose the jack and placed it under the rim so it does not rattle or hit the rim.
I wasn't very clear on the "reversing". You don't actually reverse the rim. You just place the OEM polished wheel face side up instead of down so the rim does not hit the raised portion of the floor.
The bolt was not as easy. I could not find a threaded 14M bolt long enough so I cut the stock retainer bolt at the point where the threads stop and welded in a piece of 1/2" steel rod to make the new hold-down a total of 9 - 1/2" long. See pic.
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File Type: jpg bolt.JPG (373.1 KB, 17 views)
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Old 02-15-2014, 06:25 PM
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Re: R18 Spare Tire with R20 Tires Installed

Thank you for the picture and explaination. I notice you have a 2013. I wonder if the spare tire area is the same size on a 2014. I've heard conflicting versions of whether or not a full size spare will fit with the lid closed and latched. By full size I mean exactly the same size (265/50r 20) as your running on the other 4 wheels. Some say the tire will fit but the lid will not close and the storage bins need to be removed. I was surprised to see you still have the bins in yours.
I want to buy a wheel and install a 265/50r 20 tire and use it as a spare. Doesn't matter if the wheel doesn't match the others as it would only be used long enough to get me to a repair shop.
Is the spare in your picture a 265/50r 20?
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Old 02-15-2014, 07:47 PM
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Re: R18 Spare Tire with R20 Tires Installed

Only one way to find out on your 2014. I jacked up a front wheel and removed it and then removed the stock spare and placed the front wheel (face up) in the spare location and found that the lid closed. If it works on a 2013, hopefully you will find out if it fits in the 2014 and post what you see.
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Old 02-16-2014, 03:22 PM
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Re: R18 Spare Tire with R20 Tires Installed

You're right, I guess I'll have to take a wheel off and try it myself. First I'll wait until the weather gets above freezing.
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