{"nhtsa_id":10040731,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2011-09-12","date":"2011-04-01","document_id":"FSB-721-001","mfr_campaign":null,"replaces":null,"component":"SUSPENSION:REAR:SPRINGS:LEAF SPRING ASSEMBLY:HANGER/BRACKET; SUSPENSION:FRONT:SPRINGS:LEAF SPRING ASSEMBLY:HANGER,BRACKET","mfr_system":null,"summary":"MACK TRUCKS: PROCEDURE TO REPLACE BOLTS ON THE FRONT SPRING BRACKET WHEN THEY BECOME LOOSE OR BROKEN. *RM","document":null,"url":"https://open.wenmarpro.com/bulletins/10040731","components":[{"id":"suspension","name":"Suspension","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"LEU","year_from":2007,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"MRU","year_from":2007,"year_to":2012,"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":[]}