{"nhtsa_id":10083426,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-10-24","date":"2014-05-14","document_id":"PI 0849","mfr_campaign":null,"replaces":null,"component":"SUSPENSION:FRONT:SPRINGS:LEAF SPRING ASSEMBLY:U-BOLT, LEAF SPRING TO AXLE; SUSPENSION","mfr_system":null,"summary":"THE FRONT AXLE U-BOLT WEDGES WERE INSTALLED INCORRECTLY ON SOME MACK CHU TRUCKS BUILT BETWEEN 11/11/2013 AND 02/24/2014. THE INCORRECT INSTALLATION OF THE WEDGE CAUSED THE UBOLTS TO BEND ON THE FRONT AXLE.","document":null,"url":"https://open.wenmarpro.com/bulletins/10083426","components":[{"id":"suspension","name":"Suspension","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"CHU","year_from":2014,"year_to":2015,"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":[]}