Fluid · Front Differential
Front Differential
for 2026 Chevrolet Silverado 1500 3.0L I6 Duramax LM2 · 4WD
Fluid Type
75W-90 synthetic gear oil
Spec: GM Part No. 12378396 or equivalent GL-5
Capacity
3qt
2.84 L
Drain & Refill
3 qt
2.84 L
Notes
4WD models only, lifetime fill but serviceable
As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.