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1999 GMC SIERRA 3500
5.7L V8•4WD•gas•L31
3 active safety recalls on this vehicle — view recalls
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Repairs0Labor1052Torque280Fluid20DTC1938Battery2Maintenance0Recalls3
Fluid · Rear Differential

Rear Differential

for 1999 GMC Sierra 3500 5.7L V8 · 4WD
Fluid Type
75W-90 synthetic or 80W-90 GL-5 gear oil
Spec: API GL-5
Capacity
5.5qt
5.2 L
Drain & Refill
5.5 qt
5.2 L
Change Interval
50,000 mi
80,450 km

Notes

11.5-inch full-float rear axle (AAM). Add limited slip additive if 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 and Jeff Moore · Master Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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