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1966 GMC PANEL
261ci I6•RWD•MANUAL•gas
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Repairs0Labor550Torque146Fluid7DTC0Battery1Maintenance0Recalls0
Fluid · Rear Differential

Rear Differential

for 1966 GMC Panel 261ci I6 · RWD
Fluid Type
SAE 90 GL-5 or 80W-90 GL-5
Spec: API GL-5
Capacity
3.5qt
3.31 L
Drain & Refill
3.5 qt
3.31 L
Change Interval
36,000 mi
57,924 km

Notes

Non-posi rear axle typical. Add limited-slip additive if Positraction equipped

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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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