Fluid · Rear Differential
Rear Differential
for 2026 GMC Yukon 3.0L I6 Duramax Diesel · 4WD
Fluid Type
75W-90 synthetic gear oil
Spec: API GL-5
Capacity
3.5qt
3.31 L
Drain & Refill
3.5 qt
3.31 L
Notes
9.76-inch rear differential. Add limited-slip additive if equipped. Fill-for-life per GM
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