{"nhtsa_id":10083656,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-10-27","date":"2013-11-19","document_id":"PI 0767","mfr_campaign":null,"replaces":null,"component":"SUSPENSION","mfr_system":null,"summary":"CERTAIN GU MODEL CHASSIS’ EQUIPPED WITH HALDEX SLACK ADJUSTERS AND RIDEWELL SUSPENSION WITH BUILD DATES BETWEEN FEBRUARY 1 AND MARCH 24, 2010, MAY EXHIBIT A CONDITION WHICH ALLOWS THE SLACK ADJUSTER CONTROL ARM TO MAKE CONTACT WITH THE RIDEWELL SUSPENSION WALKING BEAM DURING STEEP SUSPENSION ARTICULATION.","document":null,"url":"https://open.wenmarpro.com/bulletins/10083656","components":[{"id":"suspension","name":"Suspension","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"GU","year_from":2011,"year_to":2011,"match":null,"vehicle_ids":[]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}