{"nhtsa_id":10007840,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2004-07-13","date":"2004-03-01","document_id":"31K2K04","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION","mfr_system":null,"summary":"EFFECTIVE FEBRUARY 2004, DESIGN CHANGES WILL BE IMPLEMENTED FOR ALL 1000 AND 2000 PRODUCT FAMILIES TRANSMISSIONS. MODIFICATIONS HAVE BEEN MADE TO THE FRONT SUPPORT, MAIN CHARGING PUMP, AND ALL OF THE VALVES AND SOME SPRINGS CONTAINED IN THE ASSEMBLY. ALLISON TRANSMISSION. *MJ","document":null,"url":"https://open.wenmarpro.com/bulletins/10007840","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"UNKNOWN","model":"UNKNOWN1","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":[]}