{"nhtsa_id":10044091,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2012-05-10","date":"2012-03-29","document_id":"TIB-16-036","mfr_campaign":null,"replaces":null,"component":"SERVICE BRAKES, AIR:DISC","mfr_system":null,"summary":"KENWORTH: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. ON CERTAIN TRUCKS EQUIPPED WITH AIR DISC BRAKES (ADB) OR WITH REDUCED STOPPING DISTANCE (RSD), THE WRONG SIZE FRONT SPRING STOPPER WAS INSTALLED WHEN BUILT. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10044091","components":[{"id":"brakes","name":"Brakes","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KENWORTH","model":"T270","year_from":2011,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"KENWORTH","model":"T370","year_from":2011,"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":[]}