{"nhtsa_id":10140756,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-06-11","date":"2017-11-02","document_id":"DOC-1033256","mfr_campaign":null,"replaces":null,"component":"STRUCTURE; SUSPENSION","mfr_system":null,"summary":"SS: 1033256 - WST Frame Beaming - Rough Ride Vibration in bob tail mode","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10140756-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10140756-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10140756","components":[{"id":"structure-body","name":"Body and frame","parent":null},{"id":"suspension","name":"Suspension","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"WESTERN STAR","model":"4900","year_from":2018,"year_to":2018,"match":"exact","vehicle_ids":["2018_western-star_4900"]}],"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":[]}