TSB: REVISION NOTICE May 17, 2019 Rev1: ? The Production Change Information section has been updated. Any previous printed versions of this bulletin should be discarded. SUPERSESSION NOTICE The information contained in this bulletin supersedes Service Bulletin No. T-SB-0023-18. ? Applicability has been updated to include 2019 model year Tacoma vehicles. Service Bulletin No. T-SB-0023-18 is obsolete and any printed versions should be discarded. Some 2017 ? 2019 model year Tacoma vehicles with the BD20 differential may exhibit a noise or vibration from the rear of the vehicle at low speeds or while braking. This condition may be caused by excessive clearance between the brake drum and axle drum flange. Follow the Repair Procedure in this bulletin to address this condition.