There seems to be a lot of dealers that say they can't adjust for 265's. This sounds a little strange since some of the new 3500 trucks come with 265's.
It would be great if one of our resident GM Techs could give us detailed instructions on how to setup/use the Tech II to adjust for 265's. We could then take those instructions to our dealerships and put an end to their excuses. This could be a Tech II training issue
The Tech II will allow the dealer to reset the ABS for the new tires but it doesnot correct the speedo on the Duramax. GM does allow for tire correction on some versions of gas powered trucks but not all of them. It's kind of hit and miss at this time.
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