{"nhtsa_id":10027647,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2009-01-28","date":"2008-09-01","document_id":"CSB-08-350-004","mfr_campaign":null,"replaces":null,"component":"SUSPENSION:REAR","mfr_system":null,"summary":"SPARTAN CHASSIS: REAR SUSPENSION TAG AXLE. DOUBLE CHECK VALVE BETWEEN DRIVE AXLE SUSPENSION AND TAG AXLE SUSPENSION IS INTERFERING WITH AUTOMATIC LOAD SHARING BETWEEN DRIVE AND TAG AXLES. EQUIPPED WITH HENDRICKSON HTB 210 SUSPENSION AND HADLEY SLS (SELF LEVELING SYSTEM). *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10027647","components":[{"id":"suspension","name":"Suspension","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"SPARTAN","model":"K2","year_from":2006,"year_to":2008,"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":[]}