Differential Assembly – GM (84865587)

Differential Assembly is a replacement component matched to the powertrain it was built for rather than to a vehicle model in general. The number on the original part is the most reliable ordering reference.

Replace the Differential when the symptom traces back to this component after the surrounding circuit has been checked. Confirm the number against the original before ordering.

Ordering reference for the Differential is part number 84865587, categorised under Differentials. Match that number against the component you are removing before you order.

This is genuine GM stock, supplied for the Differential with the manufacturer number intact so the reference on the box matches the catalogue.

This is sold as an assembly; if only one component has failed, confirm whether the single part is available separately.