{"nhtsa_id":634901,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-10-10","date":"2002-05-01","document_id":"020420002","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AXLE ASSEMBLY","mfr_system":null,"summary":"SUBJECT REGARDING REVISED WHEEL BEARING ADJUSTMENT PROCEDURE. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/634901","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"axle","name":"Axle","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"C SERIES","year_from":2001,"year_to":2002,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"EXPRESS","year_from":2001,"year_to":2002,"match":"exact","vehicle_ids":["2001_chevrolet_express","2002_chevrolet_express"]},{"make":"CHEVROLET","model":"K SERIES","year_from":2001,"year_to":2002,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"C SERIES","year_from":2001,"year_to":2002,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"K SERIES","year_from":2001,"year_to":2002,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"SAVANA","year_from":2001,"year_to":2002,"match":"exact","vehicle_ids":["2001_gmc_savana","2002_gmc_savana"]}],"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":[]}