I'm currently having a new lift installed with 35" tires and 18" wheels by a local place with a good rep. Earlier today they left a message saying that my '07 XLT model requires clamps ($240) instead of bolts to fit the tires on properly, and once they are on I will have to go to a Ford place to get them calibrated to avoid a dashboard light remaining on(70$). The mech said it was the first time they've come across this and made the call to Ford soon after it was noticed. By the time I got this message it was too late to call back for details, but wonder if anyone knows more on this subject. Any help would be greatly appreciated.

 

I'd say it likely has something to do with the tire pressure sensors built into the stock rims. But I don't know any specifics.

 

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And he may be talking about the speedo calibration, too. Thr Ford IDS can recalibrate for up to a certain size tire, and his computer, if he has one, may not be able to access that info.

 

It is for the TPMS system. The 07 up due to Fed regs has a different model than previous years. The sensor is strapped to the inside of the wheel. Straps run about $50 each.

 

I guess the Feds don't roll around in lifted trucks... too bad. You were right about the 50$. Thanks for all the info guys.

 

Yes and they also do not care if you have 2 sets of tires. One for summer and one for winter. If you thought the straps are expensive, price the sensors and how much they charge to sync the sensors to the vehicle. I will live with the light. Very easy to ignore.

 

I wonder how hard it is to take the bulb out?