Fluid · Rear Differential
Rear Differential
for 2026 Ram 3500 6.7L I6 Cummins Diesel · RWD
Fluid Type
75W-90 synthetic gear oil
Spec: API GL-5
Capacity
5.5qt
5.2 L
Drain & Refill
5.5 qt
5.2 L
Change Interval
60,000 mi
96,540 km
Notes
AAM 11.5 or 10.5 rear axle. Add 0.25 qt for limited slip additive if equipped
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