Fluid · Rear Differential
Rear Differential
for 1968 Pontiac LeMans 389ci V8 · RWD
Fluid Type
80W-90 or 85W-90 GL-5
Spec: API GL-5
Capacity
4.25qt
4.02 L
Drain & Refill
4.25 qt
4.02 L
Change Interval
36,000 mi
57,924 km
Notes
Heavy-duty 12-bolt rear axle. Posi-traction common on GTO — requires limited-slip additive.
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