1)Gearbox model:S690,S580,5S111GP,5S150GP,S1506 2)synchronizer cone,synchronizer hub,flange,sliding ... ,syncro ring,gearbox housing,gear,shaft etcBrand SHIELDMaterial20CrMnTiApplicable GearboxGearbox S690,S580,5S111GP,5S150GP,S1506Applicable VehicleHOWO/SINO truck,Datong,Yutong,Merceds-benz ...