{"nhtsa_id":623435,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-10-29","date":"2001-06-01","document_id":"TSI010301","mfr_campaign":null,"replaces":null,"component":"SUSPENSION; UNKNOWN OR OTHER","mfr_system":null,"summary":"RIDE QUALITY IMPROVEMENT FOR 3400, 4700 AND 4700LP/LPX MODELS WITH 8000 LB. PARABOLIC SPRING FRONT SUSPENSION, CODES 003AAN,--003ADA AND 003AEM AND REAR AIR SUSPENSIONS. *YH","document":null,"url":"https://open.wenmarpro.com/bulletins/623435","components":[{"id":"suspension","name":"Suspension","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"INTERNATIONAL HARVESTER","model":"3400","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"INTERNATIONAL HARVESTER","model":"4700","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"INTERNATIONAL HARVESTER","model":"INTERNATIONAL","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":[]}