i will make the assumption that the device that keeps trakc of speed/tire rotation and the odometer are separate. I just want to make sure the the 33's i just installed will not affect the odometer.


as of now, the speedometer reads 3 mph slower than i am acutually going.

thanks!

 

they should be connected. so you are probably tracking less miles than you are actually going.
i think the dealer can flash your computer to adjust for the new tires, but they can only account for up to 32" tires (stock rubi).

 

confucius say...or some random bum on the street...the only stupid question is an unasked question.

 

hmmm... i would think that they would somehow counter this though.. so that people could not sell a vehicle indicating fraudulent milage... kinda like rolling a speedo back (in the days before digital read outs)... otherwise, people could just dump uber huge tires on their vehicle and then sell it showing significanlt less milage (depeding on size and what not)

 

I thought the saying was...." There are no stupid questions.....only stupid people."



I've thought about that myself. But if you're going from 32's to 35's, the difference is not that huge. I think at like 100,000 miles, you are actually at like 108,000. I believe that's what I had figured a while back. And just think though, you're warranty last longer.

 

The Odometer will read 938 miles less per 10,000 miles driven on 35's from 32's. It would be 1563 miles per 10,000 driven on 37's from 32's. So for a 3 year old Wrangler with 45,000 on the odometer, 35" tires would have gotten you no extra bonus for low mileage at trade-in, and 37" tires would net you a $175 increase. For a 6 year old Wrangler with 90,000 miles, 35" tires would still get you no bonus, and 37" tires would net you an additional $275 for trade-in allowance.

Not enough of an impact to worry about, imo.

 

What about those that would like a correct speedometer and odometer? I was going to worry about this when I was ready to a do a lift (sometime next year probably). My 97 TJ had a speedometer gear that you could replace. Our JK's don't have a speedo gear?

 

The information is all in the same if the speedo changes then the odom changes as well. Here is a calculator to help you, enter the two tire sizes and it will tell you the many differences in speed and odom