It is used in the rear axle so both wheels are driven but they can go at slightly different speeds to the tyres don't scuff when going round a corner.
In the differential of auto/truck.
The watchmakerOnésiphore Pecqueur invented the differential gear.
gear oil
Ep90 or normal gear box oil x
If you are asking about the rear differential, It is - SAE 75W90 synthetic gear oil The front is -SAE 80W90 GL-5 gear oil
80W90 gear oil.
They can be a tenth off.
the crown gear is the largest gear in th differential on your vehicle to the sides of the crown gear are the planetary gears
Use 80-90 gear oil.
2.833 is the rear-end gear ratio
4.63
Limited Slip Differential 3.55 gear ratio