Anyone know if dealer or off-shop In south texas that can reset speedometer on 2013 JKU with 3.6 hate to buy calibration tool just for that

 

Up to a certain size tire is what I was told by the San Antonio dealership. You can also check with Four Wheel Drive Parts in San Antonio to see if they can do that for you. Not sure how much either charges. My tires are over 33's so dealership could only do so much for me. Hope that helps you out.

 

I think they can get it pretty close with the 33"s. If you are running 373 ratio, they will program it for a 410 and it should bring it back. Give them a call.

 

Thanks guys ! I didn't want to spring too much money at this time but couldn't live with factory tires...... 1660 miles too many

 

I have 33's on my 2dr, still running the factory parameters. Speedo is right on with radar and GPS.

 

I've got. 33's yesterday and speedo is off 5mph and won't shift past 3rd unless I shift manually with slap shifter (5 speed auto)

 

Called dealer there'll be a $63.00 charge (1/2 hour of labor ) they can get it close. They said a recalibration box could void warranty .

 

What year is your JK? My 08 with stock 3.73s on 33s, my speedo is dead on.

EDIT sorry I saw you have a 2013. But that's weird. Did you take it on the highway and stop watch exactly one mile with the mile markers going 60 MPH?

 

Of course they said that. Of course they would have to prove that it caused some sort of problem.....

What size were your stock tires? If you had the 16" sterile so could see a difference, but the difference between a 32 and 33 are so small.

 

Dealers here can only program factory tire sizes. Instead of spending the $63 go ahead and splurge on an AEV Procal for $120, check the Billboard section for used ones at that price.