Dị ka akụkụ nke sistemu steering rack-na-pinion, ihe nrụnye ahụ bụ mmanya dị n'akụkụ axle n'ihu nke na-aga n'aka ekpe ma ọ bụ aka nri mgbe a na-atụgharị steeịnụ, na-atụgharị ụkwụ n'ihu n'ụzọ ziri ezi. Pinion bụ obere ngwo dị na njedebe nke kọlụm ịnya ụgbọ ala nke na-etinye aka n'ọkwa ahụ.