Differential Side Gear – Mopar (68570987aa)

Differential Side Gear transmits drive at a fixed ratio and is matched to its shaft by tooth count and spline. A single tooth difference changes the ratio and surfaces as a speedometer error or a shift complaint.

Replace the Differential Side Gear when tooth faces show pitting, when a whine rises with road speed, or when there is metal in the fluid. Gears wear as a set, so replacing half of one usually brings the noise back.

For this Differential Side Gear the reference is 68570987aa, in our Gears & Internal Parts range. Compare it with the number on the part you are replacing rather than with a photograph.

This is MOPAR dealer-sourced stock rather than an equivalent, so the number on the Differential Side Gear traces straight back to the manufacturer.