{"nhtsa_id":608268,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1999-11-15","date":"1999-07-01","document_id":"3224","mfr_campaign":null,"replaces":"3224","component":"SUSPENSION","mfr_system":null,"summary":"INFORMATION ON THE NEW HEIGHT CONTROL VALVE ADJUSTMENT. THIS BULLETIN REPLACES THE VERSION DATED FEBRUARY 1998. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/608268","components":[{"id":"suspension","name":"Suspension","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FREIGHTLINER","model":"ARGOSY","year_from":null,"year_to":null,"match":"exact","vehicle_ids":[]},{"make":"FREIGHTLINER","model":"BUSINESS CLASS","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"FREIGHTLINER","model":"CENTURY","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"FREIGHTLINER","model":"FLB","year_from":null,"year_to":null,"match":"exact","vehicle_ids":[]},{"make":"FREIGHTLINER","model":"FLC-112","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"FREIGHTLINER","model":"FLD","year_from":null,"year_to":null,"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":[]}