Fluid · Rear Differential
Rear Differential
for 1998 Chevrolet Express 5.7L V8 Vortec · RWD
Fluid Type
80W-90 GL-5 gear oil
Spec: GM 8.5" or 9.5" axle
Capacity
3.5qt
3.31 L
Drain & Refill
3.5 qt
3.31 L
Change Interval
50,000 mi
80,450 km
Notes
8.5" 10-bolt or 9.5" 14-bolt depending on configuration. Add limited-slip additive if equipped.
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