Fluid · Rear Differential
Rear Differential
for 1971-1974 GMC Rally Wagon 5.7L V8 · RWD
Fluid Type
80W-90 GL-5 gear oil
Spec: API GL-5
Capacity
4.4qt
4.16 L
Drain & Refill
4.4 qt
4.16 L
Change Interval
50,000 mi
80,450 km
Notes
Corporate 10-bolt or 12-bolt rear axle; add limited-slip additive if Positraction equipped
As an Amazon Associate and Autel/ANCEL partner, OLP earns from qualifying purchases — how we link. This never changes the specs we publish.