{"nhtsa_id":603927,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1999-03-11","date":"1998-11-23","document_id":"982321","mfr_campaign":null,"replaces":null,"component":"SUSPENSION","mfr_system":null,"summary":"SERVICE PROCEDURES AND VEHICLE ATTITUDE SERVICE KITS HAVE BEEN DEVELOPED TO ASSIST CUSTOMERS AND VEHICLE MODIFIERS WITH SIDE -TO- SIDE LEVELING CONCERNS RELATED TO WEIGHT DISTRIBUTION. *YC","document":null,"url":"https://open.wenmarpro.com/bulletins/603927","components":[{"id":"suspension","name":"Suspension","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"F SUPER DUTY","year_from":1989,"year_to":1997,"match":"exact","vehicle_ids":["1989_ford_f-super-duty","1990_ford_f-super-duty","1991_ford_f-super-duty","1992_ford_f-super-duty","1993_ford_f-super-duty","1994_ford_f-super-duty","1995_ford_f-super-duty","1996_ford_f-super-duty","1997_ford_f-super-duty"]},{"make":"FORD","model":"F SUPER DUTY","year_from":1998,"year_to":1999,"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":[]}