07 Sport was shipped with 225/75-16 but at some point it was switched to 235/70-16 which is what I run on my 02 and recently bought for the 07 as well. On the 07 however the speedometer is off right at 5MPH at 65, at lower speeds it is closer to being correct.
Is the tire size difference the problem with the speedometer? The diameter of the two is nearly identical, 5PMH would seem to be excessive.
Next question. Is this just a matter of having somebody program the computer for the 235/70 tires? If so is this a special tool only Jeep dealers have or will more OBD tools allow for setting tire size?
Is the tire size difference the problem with the speedometer? The diameter of the two is nearly identical, 5PMH would seem to be excessive.
Next question. Is this just a matter of having somebody program the computer for the 235/70 tires? If so is this a special tool only Jeep dealers have or will more OBD tools allow for setting tire size?