Iqupha ihinge lapho isondo lijika khona, ngokuvamile lisesimweni semfoloko. Izimfoloko ezingenhla nezingezansi zinezimbobo ezimbili ze-homing ze-kingpin, futhi ijenali ye-knuckle isetshenziselwa ukukhweza isondo. Izimbobo ezimbili zezimbobo zamaphini ku-knuckle yesiteringi zixhunywe engxenyeni emise isibhakela emaphethelweni womabili we-ekseli yangaphambili phakathi kwe-kingpin, okuvumela isondo langaphambili ukuthi lichezukise iphinikhodi ku-Engeli ukuze iqondise imoto. Ukuze kuncishiswe ukuguga, i-bronze bushing icindezelwa emgodini wephini le-knuckle, futhi ukugcotshwa kwe-bushing kugcotshwa ngamafutha afakwe ku-nozzle efakwe kwi-knuckle. Ukuze wenze isiteringi siguquguquke, ama-bearings ahlelwa phakathi kwe-lug engezansi ye-knuckle yokuqondisa kanye nengxenye yesibhakela ye-axle yangaphambili. I-gasket yokulungisa iphinde ihlinzekwe phakathi kwendlebe kanye nengxenye yesibhakela ye-knuckle yokuqondisa ukulungisa igebe phakathi kwazo.
