• Fluid Change: Regular maintenance involves changing the differential fluid. This helps to keep the gears and bearings lubricated, preventing excessive wear and reducing friction.

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• Inspection: A technician may inspect the differential components for signs of wear or damage. This includes checking the gears, bearings, seals, and other related parts.

• Seal Replacement: Over time, seals in the differential may wear out, leading to fluid leaks. Technicians may replace these seals to prevent fluid loss.

• Gear Replacement: If the gears inside the differential are worn or damaged, they may need to be replaced. This can be a more involved repair.

• Bearing Replacement: Worn bearings can cause noise and reduce the efficiency of the differential. Replacement of worn bearings is part of the repair process.

• Housing Repair: In some cases, damage to the differential housing may occur, requiring repairs or replacement.

• Some vehicles have limited-slip differentials, which require special attention. LSD service may involve additional steps, such as using specific fluids and ensuring that the limited-slip mechanism functions correctly.

• Modern vehicles may have electronic differentials that are part of an advanced traction control system. Repairs may involve diagnosing and fixing issues with sensors or the electronic control unit (ECU).

• In severe cases of damage or if the differential is beyond repair, a complete replacement may be necessary.