Locking Differential Spider – GM (12479074)

Locking Differential Spider 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 Locking Differential Spider 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 Locking Differential Spider is part number 12479074, categorised under Differentials. Match that number against the component you are removing before you order.

This is GM dealer-sourced stock rather than an equivalent, so the number on the Locking Differential Spider traces straight back to the manufacturer.