Changed Out Rear End Gears

[Calicajun]

Just had the rear end gears changed out from 3:08 to 3:42. Now the problem I have is the speed odometer is way off. How can the speed odometer be reset to show the correct speeds?

Thanks,
Craig

P.S.

After towing for the first time with the 3:42 installed I'm not sure but seems like the 3:08 did a better job.

 

[doubletapdrew]

I dealer should be able to change it with a TechII. I think most of the aftermarket tuners have this feature as well.

 

[Calicajun]

Thanks, I am looking into an aftermarket tuner but good to know the dealer can also do a reset.
The Tahoe goes into the shop tomorrow, taking out the defective 3:42 gears and install new 3:73 set of gears. Wish me luck as things haven't been going well getting the Tahoe for our trip.