Fluid · Rear Differential
Rear Differential
for 1974 GMC K1500 350ci V8 · 4WD
Fluid Type
SAE 80W-90 GL-5 gear oil
Spec: GL-5
Capacity
4.2qt
3.97 L
Drain & Refill
4.2 qt
3.97 L
Change Interval
30,000 mi
48,270 km
Data quality
Book-style estimate
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Notes
GM 10-bolt or 12-bolt full-floating axle. Add limited-slip additive if equipped with posi-traction.
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