{"nhtsa_id":10110378,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-08-04","date":"2017-03-14","document_id":"FSB 642-002","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AXLE ASSEMBLY; STEERING","mfr_system":null,"summary":"Certain GU trucks equipped with forward steer axles (18,000 lb rated front axles) and built before 2012, may experience issues with static steering while sitting still. There is not enough ability with a single steering gear to overcome certain turning frictions.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10110378-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10110378-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10110378","components":[{"id":"steering","name":"Steering","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"axle","name":"Axle","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"GU","year_from":2007,"year_to":2012,"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":[]}