One problem related to differential unit has been reported for the 2005 GMC Sierra 1500. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2005 GMC Sierra 1500 based on all problems reported for the 2005 Sierra 1500.
The contact owns a 2005 GMC Sierra 1500. While driving at an unknown speed with the heat activated, the contact smelled something burning coming from the blower motor. Sometimes, after the vehicle was driven, he would smell fuel. When making a left or right turn, one of the rear tires slides and the other one keeps spinning. The contact believes that the failure was caused by the rear differential or the abs. The vehicle has not been diagnosed by a dealer or mechanic at this time. The failure mileage was 205.