Fluid · Rear Differential
Rear Differential
for 1998 Pontiac Firebird 5.7L V8 LS1 · RWD
Fluid Type
75W-90 GL-5 gear oil
Spec: API GL-5
Capacity
4.2qt
3.97 L
Drain & Refill
4.2 qt
3.97 L
Change Interval
50,000 mi
80,450 km
Data quality
Book-style estimate
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Notes
GM 7.625 inch (10-bolt) rear axle. Limited slip models add 4 oz GM friction modifier
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