TSB: REVISION NOTICE June 8, 2018 Rev2: ? Applicability has been updated to exclude 2016 ? 2017 model year Tacoma vehicles.
? The Repair Procedure section has been updated. May 15, 2017 Rev1: ? Applicability has been updated to include 2016 ? 2017 model year Tacoma and 4Runner vehicles. ? The Introduction section has been updated. Any previous printed versions of this bulletin should be discarded. Some 2004 ? 2017 model year 4Runner vehicles, 2007 ? 2014 model year FJ Cruiser vehicles, and
2005 ? 2015 model year Tacoma vehicles equipped with part-time 4WD may exhibit a cyclical groaning or grinding noise coming from the front differential in 2WD that goes away when operated in 4WD. This noise can be addressed by replacing the needle bearing on the left side of the front differential. Refer to the Repair Procedure for needle bearing roller replacement instructions.
