I-621F kunye ne-721F zineendlela ezine zamandla ezicwangcisiweyo ezivumela abasebenzisi ukuba bafanise imveliso yomatshini namandla enjini akhoyo. Ezi zilayishi ziquka ii-axles ezinzima ezine-auto-locking front kunye ne-open back differentials ukuze zibambeke kakuhle kwiimeko ezahlukeneyo. I-axle yenzelwe ukunceda ukunciphisa ukuguguleka kwamatayara, ingakumbi kwiindawo eziqinileyo, ngokutsho kwe-OEM. I-621F kunye ne-721F zibonelela ngePakethi yokuSebenza ngokuzikhethela equka i-transmission yesantya esihlanu ene-lock-up torque converter yesantya esikhawulezayo sokuhamba endleleni, ukukhawulezisa kunye namaxesha amafutshane omjikelo, kunye nee-axles ezine-auto locking differential kunye nenkqubo yenkqubo ephucukileyo. I-transmission yesantya esisihlanu ekhethiweyo ibandakanya i-Case Powerinch feature evumela abaqhubi ukuba basondele kwiithagethi ngokukhawuleza nangokuchanekileyo nokuba isantya senjini sinjani na. I-Case ithi le feature iqinisekisa ukuba akukho rollback nokuba kukwiindawo ezithe tyaba, okwenza kube lula kwaye kukhawuleze ukulahla kwilori.