{"nhtsa_id":10028324,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2009-03-25","date":"2009-02-10","document_id":"2008-FA-6","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:MANUAL TRANSMISSION","mfr_system":null,"summary":"ALLISON TRANSMISSION SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. POTENTIAL CONCERN WITH SHIFT VALVE TRIM SPRINGS IN DOCK SPOTTER AND TRANSIT BUS VOCATIONS. THE 3000 PRODUCT FAMILY, B 300, B 400, B 500 AND T MODELS ARE AFFECTED. MODEL YEARS UNKNOWN. CSC LETTER WAS RECEIVED. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10028324","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"manual-transmission","name":"Manual transmission","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"ALLISON","model":"TRANSMISSION","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":[]}