621F ne721F dzine nzira ina dzemagetsi dzinogona kurongwa dzinobvumira vashandisi kuenzanisa simba remuchina nemagetsi einjini aripo. Ma loaders anosanganisira ma axles ane ma duty anorema ane auto-locking front uye open rear differentials kuti akwanise kubata zvakanaka mumamiriro akasiyana-siyana. Axles iyi yakagadzirirwa kubatsira kuderedza kupera kwematayi, kunyanya panzvimbo dzakaoma, sekureva kweOEM. 621F ne721F dzinopa Efficiency Package yesarudzo inosanganisira five-speed transmission ine lock-up torque converter yekukurumidza kufamba mumugwagwa, kukurumidza uye nguva pfupi ye cycle, pamwe nema axles ane auto locking differential uye advanced system programming. Optional five-speed transmission inosanganisira Case Powerinch feature iyo inobvumira vashandi kusvika pazvinangwa nekukurumidza uye nemazvo pasinei nekumhanya kweinjini. Case inoti feature iyi inoita kuti pasave nekudzokera shure kunyangwe pamawere akakwirisa, zvichiita kuti zvive nyore uye nekukurumidza kukanda murori.