Fluid · Rear Differential
Rear Differential
for 1980-1981 Pontiac Firebird Trans Am 4.3L V8 · RWD
Fluid Type
80W-90 GL-5 gear oil
Spec: API GL-5
Capacity
3.5qt
3.31 L
Drain & Refill
3.5 qt
3.31 L
Change Interval
50,000 mi
80,450 km
Notes
7.5" or 7.625" 10-bolt rear axle. Add GM limited-slip additive if equipped with Posi-Traction.
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