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1975 GMC RALLY WAGON
400ci V8•RWD•AUTOMATIC•gas
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Repairs0Labor478Torque146Fluid8DTC0Battery1Maintenance0Recalls0
Fluid · Rear Differential

Rear Differential

for 1975 GMC Rally Wagon 400ci V8 · RWD
Fluid Type
SAE 90 GL-5 or 80W-90 GL-5
Spec: API GL-5
Capacity
4.5qt
4.26 L
Drain & Refill
4.5 qt
4.26 L
Change Interval
36,000 mi
57,924 km
Data quality
Book-style estimate
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Notes

Full-size van rear axle. Add limited-slip additive if Positraction/locking differential equipped

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Other fluid systems on this vehicle

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