Fluid · Rear Differential
Rear Differential
for 2021 Chevrolet Silverado 2500HD 6.6L V8 L8T Gas · 4WD
Fluid Type
75W-90 synthetic gear oil
Spec: GM Part No. 12378261 or API GL-5
Capacity
5.5qt
5.2 L
Drain & Refill
5.5 qt
5.2 L
Notes
AAM 11.5 full-float rear axle. Add limited-slip additive if equipped. No routine service interval.
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