{"nhtsa_id":613558,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2000-07-21","date":"2000-04-14","document_id":"SB471003","mfr_campaign":null,"replaces":"SB135006","component":"SUSPENSION:REAR:SPRINGS:AIR SUSPENSION SYSTEM","mfr_system":null,"summary":"INFORMATION REGARDING THE REDESIGNED REAR AXLE HOUSING FOR CHASSIS EQUIPPED WITH AL SUSPENSION. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/613558","components":[{"id":"suspension","name":"Suspension","parent":null},{"id":"air-suspension","name":"Air suspension","parent":"suspension"}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"MACK","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":[]}