{"nhtsa_id":609538,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2000-04-03","date":"1998-08-03","document_id":"98158","mfr_campaign":null,"replaces":null,"component":"SUSPENSION:FRONT","mfr_system":null,"summary":"FRONT END SHIMMY MAY OCCUR AT VARIOUS DRIVING SPEEDS AND IS USUALLY INDUCED WHEN HITTING BUMPS, SUCH AS LARGE POTHOLES OR ROUGH RAILROAD CROSSINGS. SHIMMY IS NOT ALWAYS VERIFIED DURING ROAD TEST. *AK","document":null,"url":"https://open.wenmarpro.com/bulletins/609538","components":[{"id":"suspension","name":"Suspension","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"F-250","year_from":1991,"year_to":1997,"match":"exact","vehicle_ids":["1991_ford_f-250","1992_ford_f-250","1993_ford_f-250","1994_ford_f-250","1995_ford_f-250","1996_ford_f-250","1997_ford_f-250"]},{"make":"FORD","model":"F-350","year_from":1991,"year_to":1997,"match":"exact","vehicle_ids":["1991_ford_f-350","1992_ford_f-350","1993_ford_f-350","1994_ford_f-350","1995_ford_f-350","1996_ford_f-350","1997_ford_f-350"]},{"make":"FORD","model":"F250","year_from":1988,"year_to":1989,"match":"exact","vehicle_ids":["1988_ford_f-250","1989_ford_f-250"]},{"make":"FORD","model":"F350","year_from":1988,"year_to":1990,"match":"exact","vehicle_ids":["1988_ford_f-350","1989_ford_f-350","1990_ford_f-350"]}],"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":[]}