20 Inch Wheels Available From GM for Silverado Classic 1500 2WD V8-53L (2007)
It will be necessary to reprogram the PCM for speedometer accuracy. Contact Techline to obtain a VCI number. Then refer to the table for the
appropriate calibration part number based on the model year and axle ratio.
Calibration Information Documentation
Make a copy of the "Accessory Wheel and Tire Information Form" included in this bulletin.
