Fluid · Rear Differential
Rear Differential
for 1978 Pontiac LeMans 403ci V8 · RWD
Fluid Type
80W-90 GL-5
Spec: API GL-5
Capacity
4.25qt
4.02 L
Drain & Refill
4.25 qt
4.02 L
Change Interval
30,000 mi
48,270 km
Notes
GM 8.5" 10-bolt rear axle (larger axle with 403 engine). Add limited-slip additive if equipped with posi-traction
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