Ama-gearboxes ayizinto ezibalulekile ezinhlelweni zokudlulisa izimoto nezithuthuthu, ukudlala indima ebalulekile ekulawuleni ijubane lemoto kanye ne-torque. Empeleni, i-gearbox iyidivayisi yomshini eshintsha ijubane ne-torque yokukhipha injini, ukuvumela imoto ukuthi isebenze kahle ngaphansi kwezimo ezahlukahlukene. Kunezinhlobo eziningana zamabhokisi ama-gearbox asetshenziswa kakhulu ezimotweni, ngayinye isebenza