Fluid · Rear Differential
Rear Differential
for 1977 GMC C1500 454ci V8 · RWD
Fluid Type
80W-90 GL-5
Spec: API GL-5
Capacity
4qt
3.78 L
Drain & Refill
4 qt
3.78 L
Change Interval
30,000 mi
48,270 km
Notes
12-bolt full-float rear axle standard with 454ci engine. Add 0.5 qt if equipped with limited slip and use limited slip additive
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