Fluid · Rear Differential
Rear Differential
for 2021 GMC Sierra 1500 6.2L V8 · RWD
Fluid Type
75W-90 synthetic gear oil
Spec: GM specification 9985648
Capacity
2.75qt
2.6 L
Drain & Refill
2.75 qt
2.6 L
Data quality
Book-style estimate
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Notes
RWD model. Use limited-slip additive if equipped with G80 locking differential. Fill-for-life but check after towing or off-road use.
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