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1973 GMC C2500
454ci V8•RWD•AUTOMATIC•gas
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Repairs0Labor558Torque154Fluid7DTC0Battery1Maintenance0Recalls0
Fluid · Rear Differential

Rear Differential

for 1973 GMC C2500 454ci V8 · RWD
Fluid Type
80W-90 GL-5 or 85W-90 GL-5
Spec: API GL-5
Capacity
3.5qt
3.31 L
Drain & Refill
3.5 qt
3.31 L
Change Interval
50,000 mi
80,450 km

Notes

GM 12-bolt full-floating rear axle standard with 454. Limited slip requires friction modifier

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Other fluid systems on this vehicle

🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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