I-621F kunye ne-721F ibonisa iindlela ezine zamandla anokucwangciswa ezivumela abasebenzisi ukuba batshatise imveliso yomatshini kumandla enjini akhoyo.Abalayishi baquka ii-asi ezinomthwalo onzima kunye no-auto-locking ngaphambili kunye nokwahlukana okuvulekileyo kwangasemva ukwenzela ukubambisa ngokufanelekileyo kuluhlu lweemeko.I-axle yenzelwe ukunceda ukunciphisa ukunxiba kwetayara, ngakumbi kwiindawo ezinzima, ngokwe-OEM.I-621F kunye ne-721F inikezela ngePhakeji yokuSebenza ngokufanelekileyo ebandakanya ukuhanjiswa kwesantya esintlanu kunye ne-torque yokutshixa i-torque ye-torque yesantya esikhawulezayo sokuhamba, ukukhawuleza kunye namaxesha amafutshane omjikelezo, kunye ne-axles ene-auto locking differential kunye neprogram yenkqubo ephezulu.Uthumelo oluhamba ngesantya ezintlanu esizikhethelayo lubandakanya isici seCase Powerinch esivumela abaqhubi ukuba bafikelele kwiithagethi ngokukhawuleza nangokuchanekileyo nokuba sithini isantya senjini.I-Case ithi eli nqaku liqinisekisa ukuba akukho kubuyela umva nakwimithambeka, nto leyo eyenza kube lula kwaye kukhawuleze ukulahla elorini.