{"nhtsa_id":604605,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1999-05-06","date":"1999-01-01","document_id":"308","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AXLE ASSEMBLY","mfr_system":null,"summary":"CARRIER TO HOUSING JOINT WASHER CHANGE FOR FORWARD CARRIERS ON RT40 / 46 / 50-160 / 169 TANDEM AXLES. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/604605","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"axle","name":"Axle","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"MERITOR","model":"RT SERIES","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":[]}