Genuine Spicer
This flange is identical to 5001904 / 2-2-01904 but has a deeper recess for the pinion nut.
Alt Ref: 5019160
Uses 5-213X Universal joint
Toyota Tacoma/Hilux Flange Yoke 1330 series - Front Driveshaft - Deeper pinion nut recess - Spicer