{"nhtsa_id":54056,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1998-03-30","date":"1997-10-01","document_id":"971001970902","mfr_campaign":null,"replaces":null,"component":"SUSPENSION:FRONT:CONTROL ARM","mfr_system":null,"summary":"PROCEDURES AND SPECIFICATIONS FOR UPPER AND LOWER BALL JOINTS. *YC","document":null,"url":"https://open.wenmarpro.com/bulletins/54056","components":[{"id":"suspension","name":"Suspension","parent":null},{"id":"control-arm","name":"Control arm","parent":"suspension"}],"codes":[],"topics":[],"vehicles":[{"make":"AM GENERAL","model":"HUMMER","year_from":1997,"year_to":1997,"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":[]}