{"nhtsa_id":10200219,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-08-09","date":"2015-10-30","document_id":"FSB 722 004","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC); SUSPENSION","mfr_system":null,"summary":"Twin Y Suspension, Trailing Blade, Replacement. Some MACK CHU and CXU trucks built 06/13/2013 through 09/25/2015 and equipped with Twin-Y suspension may require replacement of the Twin-Y trailing blades with a more robust design. The new Twin-Y trailing blades have a new profile with a stronger material thickness of 7.0 mm (0.28 in). All four trailing blades will require replacement in this repair procedure.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10200219-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10200219-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10200219","components":[{"id":"driver-assistance","name":"Driver assistance","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"labels-manuals","name":"Labels and manuals","parent":null},{"id":"suspension","name":"Suspension","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"CHU","year_from":2014,"year_to":2016,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"CXU","year_from":2014,"year_to":2016,"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":[]}