{"nhtsa_id":10083517,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-10-25","date":"2015-10-30","document_id":"FSB 722-006","mfr_campaign":null,"replaces":null,"component":"SUSPENSION","mfr_system":null,"summary":"TWIN-Y SUSPENSION, U-BOLT, REPLACEMENT. FOR MACK SERVICE CENTERS OR DEALERS WHO ARE NOT EQUIPPED WITH HUCK BOLT TOOLS, USE U-BOLT (PART NUMBER 21759985) AND NUT (PART NUMBER 947971) WHEN REPLACING THE CURRENT TWIN-Y SUSPENSION U-BOLT.","document":null,"url":"https://open.wenmarpro.com/bulletins/10083517","components":[{"id":"suspension","name":"Suspension","parent":null}],"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":[]}