Putting 32's on stock X
01-22-2011, 09:21 AM
#11
JK Freak
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Don't bother at the dealership with flashing because they can only select from 4 tire sizes and 32's are not one of the choices for your jeep unless it's a rubicon. They can get it close, but it's still off and they'll still try to charge you $110 for it. This happened to me last week. They gave me this whole spill how the regular jeep isnt a rubicon and cannot handle 32s! I could not believe the words coming out of this guys mouth. He said by putting oversized tires on my jeep I'm risking excessive wear to me entire suspension and drivetrain. I laughed out loud and told him he lost his talking priviliges. Since when are 32's considered oversized tires??? The solution on my service ticket said " get an aftermarket programmer" I asked if that would void my warranty and the lady next to him said not if the programmer only does tire size. She said the computer had a tattle tale system on it and if it shows any engine or transmission config change that my warranty would be voided.
01-22-2011, 09:28 AM
#12
JK Freak
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Originally Posted by Orangeav
Get an AEV Procal, you can change tire size, adjust for new gears, set DRL's and other things as well. It's just about $150.00 too.
The dealer is retarded "DURP" comes to mind. They can only play with stock options on their computer you need to do it yourself
01-22-2011, 09:31 AM
#13
JK Super Freak
I think the mountain also comes with 32" bfg's as well as the rubicon.
01-22-2011, 09:56 AM
#14
JK Enthusiast
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My X came with 32s from the factory. 255/75/17 = 32.05"
I went from 255/75/17 to 285/75/16 so basically from 32s to 33s and the speedo difference is only 1.5mph when I'm doing 60 so I'm not too worried about a correction until I go bigger. Do a Google search for tire size calculator and there are plenty that will give you the speedo correction for different size tires. This is the one I use
w w w.1010tires.com/TireSizeCalculator.asp?action=submit
I went from 255/75/17 to 285/75/16 so basically from 32s to 33s and the speedo difference is only 1.5mph when I'm doing 60 so I'm not too worried about a correction until I go bigger. Do a Google search for tire size calculator and there are plenty that will give you the speedo correction for different size tires. This is the one I use
w w w.1010tires.com/TireSizeCalculator.asp?action=submit
Last edited by Heavy_D; 01-22-2011 at 10:02 AM.
01-22-2011, 09:58 AM
#15
JK Freak
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So then it stands to reason any X could have 32" rubi mud terrains... And for those who keep saying buy the procal and skip the dealer, I have to pay $100 for them to activate my fog lights now anyway and they can do the tire size at the same time no extra money - thereby saving $150 for the procal.
01-22-2011, 11:09 AM
#16
JK Junkie
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If you buy the barebones barebones, they came with the smaller street tires the 225's now the new sports come with the 32 inch street tires.
Okay just making sure I was doing this right so I am really traveling 242 miles every two weeks which I fill up 16 gallons every other week so my MPG is truly 15 mpg city even with 32's and 3.21 gears and my driving style and elevation.
Okay just making sure I was doing this right so I am really traveling 242 miles every two weeks which I fill up 16 gallons every other week so my MPG is truly 15 mpg city even with 32's and 3.21 gears and my driving style and elevation.
01-22-2011, 03:53 PM
#17
JK Enthusiast
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01-22-2011, 04:01 PM
#18
JK Junkie
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Yeah ok so the the regular sport which is the barebones has the 225's and the sport with the S package has the 255's.
Here is a pic of one with 225's
Here is a pic of one with 225's
Last edited by matt852; 01-22-2011 at 04:08 PM.
01-27-2011, 03:23 PM
#19
JK Freak
So then it stands to reason any X could have 32" rubi mud terrains... And for those who keep saying buy the procal and skip the dealer, I have to pay $100 for them to activate my fog lights now anyway and they can do the tire size at the same time no extra money - thereby saving $150 for the procal.