{"nhtsa_id":50569,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1997-05-27","date":"1996-12-01","document_id":"667406","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:MANUAL TRANSMISSION","mfr_system":null,"summary":"TRANSFER CASE HOPS OUT OF 4-HIGH, OR NO DRIVE IN 2 OR 4-HIGH RANGES AND/OR GRINDING NOISE (INSTALL MAINSHAFT/RANGE HUB KIT) *TW","document":null,"url":"https://open.wenmarpro.com/bulletins/50569","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"manual-transmission","name":"Manual transmission","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"C SERIES (LIGHT)","year_from":1990,"year_to":1996,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"K SERIES","year_from":1989,"year_to":1996,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"YUKON","year_from":1989,"year_to":1991,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"YUKON","year_from":1992,"year_to":1996,"match":"exact","vehicle_ids":["1992_gmc_yukon","1993_gmc_yukon","1994_gmc_yukon","1995_gmc_yukon","1996_gmc_yukon"]}],"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":[]}