{"nhtsa_id":631802,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-06-20","date":"2002-01-01","document_id":"000730017B","mfr_campaign":null,"replaces":"000730017A","component":"POWER TRAIN:AUTOMATIC TRANSMISSION","mfr_system":null,"summary":"SUBJECT REGARDING SERVICE PARTS RESRICTION PROGRAM FOR ALLISON SERIES 1000 AUTOMATIC TRANSMISSION. *SLC","document":null,"url":"https://open.wenmarpro.com/bulletins/631802","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO 2500","year_from":2002,"year_to":2002,"match":"base","vehicle_ids":["2002_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 3500","year_from":2001,"year_to":2002,"match":"base","vehicle_ids":["2001_chevrolet_silverado","2002_chevrolet_silverado"]},{"make":"CHEVROLET","model":"redundant SILVERADO 2500","year_from":2001,"year_to":2001,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"SIERRA 2500","year_from":2001,"year_to":2002,"match":"base","vehicle_ids":["2001_gmc_sierra","2002_gmc_sierra"]},{"make":"GMC","model":"SIERRA 3500","year_from":2001,"year_to":2002,"match":"base","vehicle_ids":["2001_gmc_sierra","2002_gmc_sierra"]}],"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":[]}