{"nhtsa_id":604022,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1999-03-15","date":"1998-12-15","document_id":"307","mfr_campaign":null,"replaces":null,"component":"SUSPENSION:REAR","mfr_system":null,"summary":"SUBJECT REGARDING IMPLEMENTATION CHANGES FOR ALL RS-23-186, 26/30-185 SINGLE DRIVE AXLES AND RT-52/58-185 TANDEM AXLES. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/604022","components":[{"id":"suspension","name":"Suspension","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MERITOR","model":"RS SERIES","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"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":[]}