Fluid · Rear Differential
Rear Differential
for 1968 GMC C1500 396ci V8 · RWD
Fluid Type
SAE 80W-90 gear oil
Spec: API GL-5
Capacity
4.5qt
4.26 L
Drain & Refill
4.5 qt
4.26 L
Change Interval
24,000 mi
38,616 km
Notes
12-bolt full-floating rear axle more common with big-block. Add limited-slip additive if equipped with positraction
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