One problem related to differential unit has been reported for the 2013 GMC Sierra 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2013 GMC Sierra 1500 based on all problems reported for the 2013 Sierra 1500.
Truck has a vibration in back end when you reach 50 miles per hour dealer claim they need to rebuild rear differential cost $3300. 00 truck is only 7 years old one owner.